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Finding the Fourth Proportional to 92,200.80, 138,301.20 and 63,660.45

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Solution

The fourth proportional to 92,200.80, 138,301.20 and 63,660.45 is: 95,490.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,200.80 : 138,301.20 = 63,660.45 : x
  2. Step 2: Convert to fraction form
    92,200.80/138,301.20 = 63,660.45/x
  3. Step 3: Cross multiply
    92,200.80x = 138,301.20 × 63,660.45
  4. Step 4: Simplify right side
    92,200.80x = 8,804,316,627.54
  5. Step 5: Solve for x
    x = 8,804,316,627.54/92,200.80
  6. Step 6: Final answer
    x = 95,490.68

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