Finding the Fourth Proportional to 12,686.94, 17,506.35 and 7,382.52

Step by Step Solution

1. Step 1: Write the proportion equation
   12,686.94 : 17,506.35 = 7,382.52 : x
2. Step 2: Convert to fraction form
   12,686.94/17,506.35 = 7,382.52/x
3. Step 3: Cross multiply
   12,686.94x = 17,506.35 × 7,382.52
4. Step 4: Simplify right side
   12,686.94x = 129,240,979.00
5. Step 5: Solve for x
   x = 129,240,979.00/12,686.94
6. Step 6: Final answer
   x = 10,186.93