Finding the Fourth Proportional to 12,632.43, 17,425.50 and 7,908.51

Step by Step Solution

1. Step 1: Write the proportion equation
   12,632.43 : 17,425.50 = 7,908.51 : x
2. Step 2: Convert to fraction form
   12,632.43/17,425.50 = 7,908.51/x
3. Step 3: Cross multiply
   12,632.43x = 17,425.50 × 7,908.51
4. Step 4: Simplify right side
   12,632.43x = 137,809,741.01
5. Step 5: Solve for x
   x = 137,809,741.01/12,632.43
6. Step 6: Final answer
   x = 10,909.20