Finding the Fourth Proportional to 13,445.52, 20,155.98 and 5,654.88

Step by Step Solution

1. Step 1: Write the proportion equation
   13,445.52 : 20,155.98 = 5,654.88 : x
2. Step 2: Convert to fraction form
   13,445.52/20,155.98 = 5,654.88/x
3. Step 3: Cross multiply
   13,445.52x = 20,155.98 × 5,654.88
4. Step 4: Simplify right side
   13,445.52x = 113,979,648.18
5. Step 5: Solve for x
   x = 113,979,648.18/13,445.52
6. Step 6: Final answer
   x = 8,477.15