Finding the Fourth Proportional to 24,978.62, 34,470.10 and 13,647.88

Step by Step Solution

1. Step 1: Write the proportion equation
   24,978.62 : 34,470.10 = 13,647.88 : x
2. Step 2: Convert to fraction form
   24,978.62/34,470.10 = 13,647.88/x
3. Step 3: Cross multiply
   24,978.62x = 34,470.10 × 13,647.88
4. Step 4: Simplify right side
   24,978.62x = 470,443,788.39
5. Step 5: Solve for x
   x = 470,443,788.39/24,978.62
6. Step 6: Final answer
   x = 18,833.86