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Finding the Fourth Proportional to 120,586.68, 166,408.80 and 66,871.74

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Solution

The fourth proportional to 120,586.68, 166,408.80 and 66,871.74 is: 92,282.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,586.68 : 166,408.80 = 66,871.74 : x
  2. Step 2: Convert to fraction form
    120,586.68/166,408.80 = 66,871.74/x
  3. Step 3: Cross multiply
    120,586.68x = 166,408.80 × 66,871.74
  4. Step 4: Simplify right side
    120,586.68x = 11,128,046,007.31
  5. Step 5: Solve for x
    x = 11,128,046,007.31/120,586.68
  6. Step 6: Final answer
    x = 92,282.55

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