Finding the Fourth Proportional to 12,577.29, 18,862.56 and 5,990.37

Step by Step Solution

1. Step 1: Write the proportion equation
   12,577.29 : 18,862.56 = 5,990.37 : x
2. Step 2: Convert to fraction form
   12,577.29/18,862.56 = 5,990.37/x
3. Step 3: Cross multiply
   12,577.29x = 18,862.56 × 5,990.37
4. Step 4: Simplify right side
   12,577.29x = 112,993,713.55
5. Step 5: Solve for x
   x = 112,993,713.55/12,577.29
6. Step 6: Final answer
   x = 8,983.95