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Finding the Fourth Proportional to 424,546.38, 636,816.69 and 129,058.38

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Solution

The fourth proportional to 424,546.38, 636,816.69 and 129,058.38 is: 193,586.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,546.38 : 636,816.69 = 129,058.38 : x
  2. Step 2: Convert to fraction form
    424,546.38/636,816.69 = 129,058.38/x
  3. Step 3: Cross multiply
    424,546.38x = 636,816.69 × 129,058.38
  4. Step 4: Simplify right side
    424,546.38x = 82,186,530,368.36
  5. Step 5: Solve for x
    x = 82,186,530,368.36/424,546.38
  6. Step 6: Final answer
    x = 193,586.69

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