Finding the Fourth Proportional to 10,260.91, 15,381.72 and 5,574.04

Step by Step Solution

1. Step 1: Write the proportion equation
   10,260.91 : 15,381.72 = 5,574.04 : x
2. Step 2: Convert to fraction form
   10,260.91/15,381.72 = 5,574.04/x
3. Step 3: Cross multiply
   10,260.91x = 15,381.72 × 5,574.04
4. Step 4: Simplify right side
   10,260.91x = 85,738,322.55
5. Step 5: Solve for x
   x = 85,738,322.55/10,260.91
6. Step 6: Final answer
   x = 8,355.82