Finding the Fourth Proportional to 14,787.18, 20,404.17 and 8,498.34

Step by Step Solution

1. Step 1: Write the proportion equation
   14,787.18 : 20,404.17 = 8,498.34 : x
2. Step 2: Convert to fraction form
   14,787.18/20,404.17 = 8,498.34/x
3. Step 3: Cross multiply
   14,787.18x = 20,404.17 × 8,498.34
4. Step 4: Simplify right side
   14,787.18x = 173,401,574.08
5. Step 5: Solve for x
   x = 173,401,574.08/14,787.18
6. Step 6: Final answer
   x = 11,726.48