Finding the Fourth Proportional to 9,300.56, 13,957.86 and 5,591.48

Step by Step Solution

1. Step 1: Write the proportion equation
   9,300.56 : 13,957.86 = 5,591.48 : x
2. Step 2: Convert to fraction form
   9,300.56/13,957.86 = 5,591.48/x
3. Step 3: Cross multiply
   9,300.56x = 13,957.86 × 5,591.48
4. Step 4: Simplify right side
   9,300.56x = 78,045,095.03
5. Step 5: Solve for x
   x = 78,045,095.03/9,300.56
6. Step 6: Final answer
   x = 8,391.44