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Finding the Fourth Proportional to 13,579.99, 18,746.94 and 9,050.21

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Solution

The fourth proportional to 13,579.99, 18,746.94 and 9,050.21 is: 12,493.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,579.99 : 18,746.94 = 9,050.21 : x
  2. Step 2: Convert to fraction form
    13,579.99/18,746.94 = 9,050.21/x
  3. Step 3: Cross multiply
    13,579.99x = 18,746.94 × 9,050.21
  4. Step 4: Simplify right side
    13,579.99x = 169,663,824.66
  5. Step 5: Solve for x
    x = 169,663,824.66/13,579.99
  6. Step 6: Final answer
    x = 12,493.66

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