Finding the Fourth Proportional to 10,268.91, 15,393.78 and 5,581.98

Step by Step Solution

1. Step 1: Write the proportion equation
   10,268.91 : 15,393.78 = 5,581.98 : x
2. Step 2: Convert to fraction form
   10,268.91/15,393.78 = 5,581.98/x
3. Step 3: Cross multiply
   10,268.91x = 15,393.78 × 5,581.98
4. Step 4: Simplify right side
   10,268.91x = 85,927,772.08
5. Step 5: Solve for x
   x = 85,927,772.08/10,268.91
6. Step 6: Final answer
   x = 8,367.76