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Finding the Fourth Proportional to 115,902.80, 173,854.20 and 56,776.40

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Solution

The fourth proportional to 115,902.80, 173,854.20 and 56,776.40 is: 85,164.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,902.80 : 173,854.20 = 56,776.40 : x
  2. Step 2: Convert to fraction form
    115,902.80/173,854.20 = 56,776.40/x
  3. Step 3: Cross multiply
    115,902.80x = 173,854.20 × 56,776.40
  4. Step 4: Simplify right side
    115,902.80x = 9,870,815,600.88
  5. Step 5: Solve for x
    x = 9,870,815,600.88/115,902.80
  6. Step 6: Final answer
    x = 85,164.60

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