Finding the Fourth Proportional to 8,799.49, 12,151.38 and 5,661.01

Step by Step Solution

1. Step 1: Write the proportion equation
   8,799.49 : 12,151.38 = 5,661.01 : x
2. Step 2: Convert to fraction form
   8,799.49/12,151.38 = 5,661.01/x
3. Step 3: Cross multiply
   8,799.49x = 12,151.38 × 5,661.01
4. Step 4: Simplify right side
   8,799.49x = 68,789,083.69
5. Step 5: Solve for x
   x = 68,789,083.69/8,799.49
6. Step 6: Final answer
   x = 7,817.39