Finding the Fourth Proportional to 8,104.52, 11,155.20 and 5,742.56

Step by Step Solution

1. Step 1: Write the proportion equation
   8,104.52 : 11,155.20 = 5,742.56 : x
2. Step 2: Convert to fraction form
   8,104.52/11,155.20 = 5,742.56/x
3. Step 3: Cross multiply
   8,104.52x = 11,155.20 × 5,742.56
4. Step 4: Simplify right side
   8,104.52x = 64,059,405.31
5. Step 5: Solve for x
   x = 64,059,405.31/8,104.52
6. Step 6: Final answer
   x = 7,904.16