Finding the Fourth Proportional to 9,141.30, 13,706.76 and 3,591.61

Step by Step Solution

1. Step 1: Write the proportion equation
   9,141.30 : 13,706.76 = 3,591.61 : x
2. Step 2: Convert to fraction form
   9,141.30/13,706.76 = 3,591.61/x
3. Step 3: Cross multiply
   9,141.30x = 13,706.76 × 3,591.61
4. Step 4: Simplify right side
   9,141.30x = 49,229,336.28
5. Step 5: Solve for x
   x = 49,229,336.28/9,141.30
6. Step 6: Final answer
   x = 5,385.38