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Finding the Fourth Proportional to 115,789.40, 173,684.10 and 56,740.40

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Solution

The fourth proportional to 115,789.40, 173,684.10 and 56,740.40 is: 85,110.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,789.40 : 173,684.10 = 56,740.40 : x
  2. Step 2: Convert to fraction form
    115,789.40/173,684.10 = 56,740.40/x
  3. Step 3: Cross multiply
    115,789.40x = 173,684.10 × 56,740.40
  4. Step 4: Simplify right side
    115,789.40x = 9,854,905,307.64
  5. Step 5: Solve for x
    x = 9,854,905,307.64/115,789.40
  6. Step 6: Final answer
    x = 85,110.60

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