Finding the Fourth Proportional to 9,849.90, 13,591.89 and 5,600.91

Step by Step Solution

1. Step 1: Write the proportion equation
   9,849.90 : 13,591.89 = 5,600.91 : x
2. Step 2: Convert to fraction form
   9,849.90/13,591.89 = 5,600.91/x
3. Step 3: Cross multiply
   9,849.90x = 13,591.89 × 5,600.91
4. Step 4: Simplify right side
   9,849.90x = 76,126,952.62
5. Step 5: Solve for x
   x = 76,126,952.62/9,849.90
6. Step 6: Final answer
   x = 7,728.70