Finding the Fourth Proportional to 8,981.01, 12,399.21 and 5,799.87

Step by Step Solution

1. Step 1: Write the proportion equation
   8,981.01 : 12,399.21 = 5,799.87 : x
2. Step 2: Convert to fraction form
   8,981.01/12,399.21 = 5,799.87/x
3. Step 3: Cross multiply
   8,981.01x = 12,399.21 × 5,799.87
4. Step 4: Simplify right side
   8,981.01x = 71,913,806.10
5. Step 5: Solve for x
   x = 71,913,806.10/8,981.01
6. Step 6: Final answer
   x = 8,007.32