Finding the Fourth Proportional to 11,340.29, 15,620.27 and 7,931.27

Step by Step Solution

1. Step 1: Write the proportion equation
   11,340.29 : 15,620.27 = 7,931.27 : x
2. Step 2: Convert to fraction form
   11,340.29/15,620.27 = 7,931.27/x
3. Step 3: Cross multiply
   11,340.29x = 15,620.27 × 7,931.27
4. Step 4: Simplify right side
   11,340.29x = 123,888,461.09
5. Step 5: Solve for x
   x = 123,888,461.09/11,340.29
6. Step 6: Final answer
   x = 10,924.63