Finding the Fourth Proportional to 13,025.67, 17,975.40 and 7,057.50

Step by Step Solution

1. Step 1: Write the proportion equation
   13,025.67 : 17,975.40 = 7,057.50 : x
2. Step 2: Convert to fraction form
   13,025.67/17,975.40 = 7,057.50/x
3. Step 3: Cross multiply
   13,025.67x = 17,975.40 × 7,057.50
4. Step 4: Simplify right side
   13,025.67x = 126,861,385.50
5. Step 5: Solve for x
   x = 126,861,385.50/13,025.67
6. Step 6: Final answer
   x = 9,739.34