Finding the Fourth Proportional to 12,361.92, 17,060.88 and 7,057.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,361.92 : 17,060.88 = 7,057.50 : x
2. Step 2: Convert to fraction form
   12,361.92/17,060.88 = 7,057.50/x
3. Step 3: Cross multiply
   12,361.92x = 17,060.88 × 7,057.50
4. Step 4: Simplify right side
   12,361.92x = 120,407,160.60
5. Step 5: Solve for x
   x = 120,407,160.60/12,361.92
6. Step 6: Final answer
   x = 9,740.17