Finding the Fourth Proportional to 13,047.94, 18,006.17 and 7,382.57

Step by Step Solution

1. Step 1: Write the proportion equation
   13,047.94 : 18,006.17 = 7,382.57 : x
2. Step 2: Convert to fraction form
   13,047.94/18,006.17 = 7,382.57/x
3. Step 3: Cross multiply
   13,047.94x = 18,006.17 × 7,382.57
4. Step 4: Simplify right side
   13,047.94x = 132,931,810.46
5. Step 5: Solve for x
   x = 132,931,810.46/13,047.94
6. Step 6: Final answer
   x = 10,187.95