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Finding the Fourth Proportional to 38,963.34, 58,458.57 and 12,313.38

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Solution

The fourth proportional to 38,963.34, 58,458.57 and 12,313.38 is: 18,474.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,963.34 : 58,458.57 = 12,313.38 : x
  2. Step 2: Convert to fraction form
    38,963.34/58,458.57 = 12,313.38/x
  3. Step 3: Cross multiply
    38,963.34x = 58,458.57 × 12,313.38
  4. Step 4: Simplify right side
    38,963.34x = 719,822,586.67
  5. Step 5: Solve for x
    x = 719,822,586.67/38,963.34
  6. Step 6: Final answer
    x = 18,474.36

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