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Finding the Fourth Proportional to 78,424.22, 116,806.16 and 78,041.90

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Solution

The fourth proportional to 78,424.22, 116,806.16 and 78,041.90 is: 116,236.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,424.22 : 116,806.16 = 78,041.90 : x
  2. Step 2: Convert to fraction form
    78,424.22/116,806.16 = 78,041.90/x
  3. Step 3: Cross multiply
    78,424.22x = 116,806.16 × 78,041.90
  4. Step 4: Simplify right side
    78,424.22x = 9,115,773,976.52
  5. Step 5: Solve for x
    x = 9,115,773,976.52/78,424.22
  6. Step 6: Final answer
    x = 116,236.73

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