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Finding the Fourth Proportional to 12,603.72, 18,904.14 and 3,370.44

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Solution

The fourth proportional to 12,603.72, 18,904.14 and 3,370.44 is: 5,055.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,603.72 : 18,904.14 = 3,370.44 : x
  2. Step 2: Convert to fraction form
    12,603.72/18,904.14 = 3,370.44/x
  3. Step 3: Cross multiply
    12,603.72x = 18,904.14 × 3,370.44
  4. Step 4: Simplify right side
    12,603.72x = 63,715,269.62
  5. Step 5: Solve for x
    x = 63,715,269.62/12,603.72
  6. Step 6: Final answer
    x = 5,055.27

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