Finding the Fourth Proportional to 15,105.20, 22,652.69 and 5,742.99

Step by Step Solution

1. Step 1: Write the proportion equation
   15,105.20 : 22,652.69 = 5,742.99 : x
2. Step 2: Convert to fraction form
   15,105.20/22,652.69 = 5,742.99/x
3. Step 3: Cross multiply
   15,105.20x = 22,652.69 × 5,742.99
4. Step 4: Simplify right side
   15,105.20x = 130,094,143.43
5. Step 5: Solve for x
   x = 130,094,143.43/15,105.20
6. Step 6: Final answer
   x = 8,612.54