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Finding the Fourth Proportional to 139,422.87, 209,139.21 and 44,655.93

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Solution

The fourth proportional to 139,422.87, 209,139.21 and 44,655.93 is: 66,985.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,422.87 : 209,139.21 = 44,655.93 : x
  2. Step 2: Convert to fraction form
    139,422.87/209,139.21 = 44,655.93/x
  3. Step 3: Cross multiply
    139,422.87x = 209,139.21 × 44,655.93
  4. Step 4: Simplify right side
    139,422.87x = 9,339,305,922.02
  5. Step 5: Solve for x
    x = 9,339,305,922.02/139,422.87
  6. Step 6: Final answer
    x = 66,985.47

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