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Finding the Fourth Proportional to 79,171.76, 109,257.37 and 42,873.68

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Solution

The fourth proportional to 79,171.76, 109,257.37 and 42,873.68 is: 59,165.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,171.76 : 109,257.37 = 42,873.68 : x
  2. Step 2: Convert to fraction form
    79,171.76/109,257.37 = 42,873.68/x
  3. Step 3: Cross multiply
    79,171.76x = 109,257.37 × 42,873.68
  4. Step 4: Simplify right side
    79,171.76x = 4,684,264,865.55
  5. Step 5: Solve for x
    x = 4,684,264,865.55/79,171.76
  6. Step 6: Final answer
    x = 59,165.86

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