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Finding the Fourth Proportional to 265,788.56, 398,684.39 and 66,108.98

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Solution

The fourth proportional to 265,788.56, 398,684.39 and 66,108.98 is: 99,163.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,788.56 : 398,684.39 = 66,108.98 : x
  2. Step 2: Convert to fraction form
    265,788.56/398,684.39 = 66,108.98/x
  3. Step 3: Cross multiply
    265,788.56x = 398,684.39 × 66,108.98
  4. Step 4: Simplify right side
    265,788.56x = 26,356,616,040.86
  5. Step 5: Solve for x
    x = 26,356,616,040.86/265,788.56
  6. Step 6: Final answer
    x = 99,163.85

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