Finding the Fourth Proportional to 12,361.72, 17,061.84 and 7,884.48

Step by Step Solution

1. Step 1: Write the proportion equation
   12,361.72 : 17,061.84 = 7,884.48 : x
2. Step 2: Convert to fraction form
   12,361.72/17,061.84 = 7,884.48/x
3. Step 3: Cross multiply
   12,361.72x = 17,061.84 × 7,884.48
4. Step 4: Simplify right side
   12,361.72x = 134,523,736.24
5. Step 5: Solve for x
   x = 134,523,736.24/12,361.72
6. Step 6: Final answer
   x = 10,882.28