Finding the Fourth Proportional to 12,582.88, 17,359.86 and 8,812.06

Step by Step Solution

1. Step 1: Write the proportion equation
   12,582.88 : 17,359.86 = 8,812.06 : x
2. Step 2: Convert to fraction form
   12,582.88/17,359.86 = 8,812.06/x
3. Step 3: Cross multiply
   12,582.88x = 17,359.86 × 8,812.06
4. Step 4: Simplify right side
   12,582.88x = 152,976,127.91
5. Step 5: Solve for x
   x = 152,976,127.91/12,582.88
6. Step 6: Final answer
   x = 12,157.48