Finding the Fourth Proportional to 12,382.67, 17,111.45 and 9,393.17

Step by Step Solution

1. Step 1: Write the proportion equation
   12,382.67 : 17,111.45 = 9,393.17 : x
2. Step 2: Convert to fraction form
   12,382.67/17,111.45 = 9,393.17/x
3. Step 3: Cross multiply
   12,382.67x = 17,111.45 × 9,393.17
4. Step 4: Simplify right side
   12,382.67x = 160,730,696.72
5. Step 5: Solve for x
   x = 160,730,696.72/12,382.67
6. Step 6: Final answer
   x = 12,980.29