Finding the Fourth Proportional to 12,435.60, 17,162.04 and 7,132.08

Step by Step Solution

1. Step 1: Write the proportion equation
   12,435.60 : 17,162.04 = 7,132.08 : x
2. Step 2: Convert to fraction form
   12,435.60/17,162.04 = 7,132.08/x
3. Step 3: Cross multiply
   12,435.60x = 17,162.04 × 7,132.08
4. Step 4: Simplify right side
   12,435.60x = 122,401,042.24
5. Step 5: Solve for x
   x = 122,401,042.24/12,435.60
6. Step 6: Final answer
   x = 9,842.79