Finding the Fourth Proportional to 12,432.79, 17,159.33 and 7,956.32

Step by Step Solution

1. Step 1: Write the proportion equation
   12,432.79 : 17,159.33 = 7,956.32 : x
2. Step 2: Convert to fraction form
   12,432.79/17,159.33 = 7,956.32/x
3. Step 3: Cross multiply
   12,432.79x = 17,159.33 × 7,956.32
4. Step 4: Simplify right side
   12,432.79x = 136,525,080.68
5. Step 5: Solve for x
   x = 136,525,080.68/12,432.79
6. Step 6: Final answer
   x = 10,981.05