Finding the Fourth Proportional to 12,748.47, 17,607.60 and 8,492.52

Step by Step Solution

1. Step 1: Write the proportion equation
   12,748.47 : 17,607.60 = 8,492.52 : x
2. Step 2: Convert to fraction form
   12,748.47/17,607.60 = 8,492.52/x
3. Step 3: Cross multiply
   12,748.47x = 17,607.60 × 8,492.52
4. Step 4: Simplify right side
   12,748.47x = 149,532,895.15
5. Step 5: Solve for x
   x = 149,532,895.15/12,748.47
6. Step 6: Final answer
   x = 11,729.48