Finding the Fourth Proportional to 12,492.47, 17,231.56 and 7,452.81

Step by Step Solution

1. Step 1: Write the proportion equation
   12,492.47 : 17,231.56 = 7,452.81 : x
2. Step 2: Convert to fraction form
   12,492.47/17,231.56 = 7,452.81/x
3. Step 3: Cross multiply
   12,492.47x = 17,231.56 × 7,452.81
4. Step 4: Simplify right side
   12,492.47x = 128,423,524.05
5. Step 5: Solve for x
   x = 128,423,524.05/12,492.47
6. Step 6: Final answer
   x = 10,280.07