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Finding the Fourth Proportional to 92,494.72, 138,628.80 and 39,792.64

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Solution

The fourth proportional to 92,494.72, 138,628.80 and 39,792.64 is: 59,640.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,494.72 : 138,628.80 = 39,792.64 : x
  2. Step 2: Convert to fraction form
    92,494.72/138,628.80 = 39,792.64/x
  3. Step 3: Cross multiply
    92,494.72x = 138,628.80 × 39,792.64
  4. Step 4: Simplify right side
    92,494.72x = 5,516,405,932.03
  5. Step 5: Solve for x
    x = 5,516,405,932.03/92,494.72
  6. Step 6: Final answer
    x = 59,640.23

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