Finding the Fourth Proportional to 12,359.52, 17,057.76 and 7,053.12

Step by Step Solution

1. Step 1: Write the proportion equation
   12,359.52 : 17,057.76 = 7,053.12 : x
2. Step 2: Convert to fraction form
   12,359.52/17,057.76 = 7,053.12/x
3. Step 3: Cross multiply
   12,359.52x = 17,057.76 × 7,053.12
4. Step 4: Simplify right side
   12,359.52x = 120,310,428.21
5. Step 5: Solve for x
   x = 120,310,428.21/12,359.52
6. Step 6: Final answer
   x = 9,734.23