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Finding the Fourth Proportional to 58,423.40, 80,690.79 and 39,269.92

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Solution

The fourth proportional to 58,423.40, 80,690.79 and 39,269.92 is: 54,237.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,423.40 : 80,690.79 = 39,269.92 : x
  2. Step 2: Convert to fraction form
    58,423.40/80,690.79 = 39,269.92/x
  3. Step 3: Cross multiply
    58,423.40x = 80,690.79 × 39,269.92
  4. Step 4: Simplify right side
    58,423.40x = 3,168,720,964.87
  5. Step 5: Solve for x
    x = 3,168,720,964.87/58,423.40
  6. Step 6: Final answer
    x = 54,237.19

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