Finding the Fourth Proportional to 9,155.24, 12,633.72 and 5,377.82

Step by Step Solution

1. Step 1: Write the proportion equation
   9,155.24 : 12,633.72 = 5,377.82 : x
2. Step 2: Convert to fraction form
   9,155.24/12,633.72 = 5,377.82/x
3. Step 3: Cross multiply
   9,155.24x = 12,633.72 × 5,377.82
4. Step 4: Simplify right side
   9,155.24x = 67,941,872.09
5. Step 5: Solve for x
   x = 67,941,872.09/9,155.24
6. Step 6: Final answer
   x = 7,421.09