Finding the Fourth Proportional to 12,580.10, 17,352.78 and 9,048.02

Step by Step Solution

1. Step 1: Write the proportion equation
   12,580.10 : 17,352.78 = 9,048.02 : x
2. Step 2: Convert to fraction form
   12,580.10/17,352.78 = 9,048.02/x
3. Step 3: Cross multiply
   12,580.10x = 17,352.78 × 9,048.02
4. Step 4: Simplify right side
   12,580.10x = 157,008,300.50
5. Step 5: Solve for x
   x = 157,008,300.50/12,580.10
6. Step 6: Final answer
   x = 12,480.69