Finding the Fourth Proportional to 11,150.76, 15,358.47 and 8,309.02

Step by Step Solution

1. Step 1: Write the proportion equation
   11,150.76 : 15,358.47 = 8,309.02 : x
2. Step 2: Convert to fraction form
   11,150.76/15,358.47 = 8,309.02/x
3. Step 3: Cross multiply
   11,150.76x = 15,358.47 × 8,309.02
4. Step 4: Simplify right side
   11,150.76x = 127,613,834.40
5. Step 5: Solve for x
   x = 127,613,834.40/11,150.76
6. Step 6: Final answer
   x = 11,444.41