Finding the Fourth Proportional to 11,303.72, 15,589.89 and 7,957.61

Step by Step Solution

1. Step 1: Write the proportion equation
   11,303.72 : 15,589.89 = 7,957.61 : x
2. Step 2: Convert to fraction form
   11,303.72/15,589.89 = 7,957.61/x
3. Step 3: Cross multiply
   11,303.72x = 15,589.89 × 7,957.61
4. Step 4: Simplify right side
   11,303.72x = 124,058,264.56
5. Step 5: Solve for x
   x = 124,058,264.56/11,303.72
6. Step 6: Final answer
   x = 10,974.99