Finding the Fourth Proportional to 9,181.76, 12,501.32 and 9,152.60

Step by Step Solution

1. Step 1: Write the proportion equation
   9,181.76 : 12,501.32 = 9,152.60 : x
2. Step 2: Convert to fraction form
   9,181.76/12,501.32 = 9,152.60/x
3. Step 3: Cross multiply
   9,181.76x = 12,501.32 × 9,152.60
4. Step 4: Simplify right side
   9,181.76x = 114,419,581.43
5. Step 5: Solve for x
   x = 114,419,581.43/9,181.76
6. Step 6: Final answer
   x = 12,461.62