Finding the Fourth Proportional to 7,391.72, 11,077.98 and 3,872.82

Step by Step Solution

1. Step 1: Write the proportion equation
   7,391.72 : 11,077.98 = 3,872.82 : x
2. Step 2: Convert to fraction form
   7,391.72/11,077.98 = 3,872.82/x
3. Step 3: Cross multiply
   7,391.72x = 11,077.98 × 3,872.82
4. Step 4: Simplify right side
   7,391.72x = 42,903,049.52
5. Step 5: Solve for x
   x = 42,903,049.52/7,391.72
6. Step 6: Final answer
   x = 5,804.20