Finding the Fourth Proportional to 12,824.76, 17,699.06 and 7,160.62

Step by Step Solution

1. Step 1: Write the proportion equation
   12,824.76 : 17,699.06 = 7,160.62 : x
2. Step 2: Convert to fraction form
   12,824.76/17,699.06 = 7,160.62/x
3. Step 3: Cross multiply
   12,824.76x = 17,699.06 × 7,160.62
4. Step 4: Simplify right side
   12,824.76x = 126,736,243.02
5. Step 5: Solve for x
   x = 126,736,243.02/12,824.76
6. Step 6: Final answer
   x = 9,882.15