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Finding the Fourth Proportional to 13,799.01, 20,701.85 and 4,439.90

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Solution

The fourth proportional to 13,799.01, 20,701.85 and 4,439.90 is: 6,660.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,799.01 : 20,701.85 = 4,439.90 : x
  2. Step 2: Convert to fraction form
    13,799.01/20,701.85 = 4,439.90/x
  3. Step 3: Cross multiply
    13,799.01x = 20,701.85 × 4,439.90
  4. Step 4: Simplify right side
    13,799.01x = 91,914,018.11
  5. Step 5: Solve for x
    x = 91,914,018.11/13,799.01
  6. Step 6: Final answer
    x = 6,660.91

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