Finding the Fourth Proportional to 12,714.72, 17,545.56 and 7,125.60

Step by Step Solution

1. Step 1: Write the proportion equation
   12,714.72 : 17,545.56 = 7,125.60 : x
2. Step 2: Convert to fraction form
   12,714.72/17,545.56 = 7,125.60/x
3. Step 3: Cross multiply
   12,714.72x = 17,545.56 × 7,125.60
4. Step 4: Simplify right side
   12,714.72x = 125,022,642.34
5. Step 5: Solve for x
   x = 125,022,642.34/12,714.72
6. Step 6: Final answer
   x = 9,832.91