Finding the Fourth Proportional to 11,758.50, 17,701.88 and 10,725.12

Step by Step Solution

1. Step 1: Write the proportion equation
   11,758.50 : 17,701.88 = 10,725.12 : x
2. Step 2: Convert to fraction form
   11,758.50/17,701.88 = 10,725.12/x
3. Step 3: Cross multiply
   11,758.50x = 17,701.88 × 10,725.12
4. Step 4: Simplify right side
   11,758.50x = 189,854,733.60
5. Step 5: Solve for x
   x = 189,854,733.60/11,758.50
6. Step 6: Final answer
   x = 16,146.17