Finding the Fourth Proportional to 10,499.58, 15,700.71 and 8,132.76

Step by Step Solution

1. Step 1: Write the proportion equation
   10,499.58 : 15,700.71 = 8,132.76 : x
2. Step 2: Convert to fraction form
   10,499.58/15,700.71 = 8,132.76/x
3. Step 3: Cross multiply
   10,499.58x = 15,700.71 × 8,132.76
4. Step 4: Simplify right side
   10,499.58x = 127,690,106.26
5. Step 5: Solve for x
   x = 127,690,106.26/10,499.58
6. Step 6: Final answer
   x = 12,161.45