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Finding the Fourth Proportional to 77,947.01, 107,566.74 and 42,137.04

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Solution

The fourth proportional to 77,947.01, 107,566.74 and 42,137.04 is: 58,149.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,947.01 : 107,566.74 = 42,137.04 : x
  2. Step 2: Convert to fraction form
    77,947.01/107,566.74 = 42,137.04/x
  3. Step 3: Cross multiply
    77,947.01x = 107,566.74 × 42,137.04
  4. Step 4: Simplify right side
    77,947.01x = 4,532,544,026.05
  5. Step 5: Solve for x
    x = 4,532,544,026.05/77,947.01
  6. Step 6: Final answer
    x = 58,149.04

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