Finding the Fourth Proportional to 12,702.81, 17,529.85 and 7,037.57

Step by Step Solution

1. Step 1: Write the proportion equation
   12,702.81 : 17,529.85 = 7,037.57 : x
2. Step 2: Convert to fraction form
   12,702.81/17,529.85 = 7,037.57/x
3. Step 3: Cross multiply
   12,702.81x = 17,529.85 × 7,037.57
4. Step 4: Simplify right side
   12,702.81x = 123,367,546.46
5. Step 5: Solve for x
   x = 123,367,546.46/12,702.81
6. Step 6: Final answer
   x = 9,711.83