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Finding the Fourth Proportional to 18,796.80, 28,117.44 and 17,086.08

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Solution

The fourth proportional to 18,796.80, 28,117.44 and 17,086.08 is: 25,558.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,796.80 : 28,117.44 = 17,086.08 : x
  2. Step 2: Convert to fraction form
    18,796.80/28,117.44 = 17,086.08/x
  3. Step 3: Cross multiply
    18,796.80x = 28,117.44 × 17,086.08
  4. Step 4: Simplify right side
    18,796.80x = 480,416,829.24
  5. Step 5: Solve for x
    x = 480,416,829.24/18,796.80
  6. Step 6: Final answer
    x = 25,558.44

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