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Finding the Fourth Proportional to 19,188.39, 28,782.60 and 5,337.39

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Solution

The fourth proportional to 19,188.39, 28,782.60 and 5,337.39 is: 8,006.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,188.39 : 28,782.60 = 5,337.39 : x
  2. Step 2: Convert to fraction form
    19,188.39/28,782.60 = 5,337.39/x
  3. Step 3: Cross multiply
    19,188.39x = 28,782.60 × 5,337.39
  4. Step 4: Simplify right side
    19,188.39x = 153,623,961.41
  5. Step 5: Solve for x
    x = 153,623,961.41/19,188.39
  6. Step 6: Final answer
    x = 8,006.09

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