Finding the Fourth Proportional to 5,407.52, 8,100.76 and 3,553.05

Step by Step Solution

1. Step 1: Write the proportion equation
   5,407.52 : 8,100.76 = 3,553.05 : x
2. Step 2: Convert to fraction form
   5,407.52/8,100.76 = 3,553.05/x
3. Step 3: Cross multiply
   5,407.52x = 8,100.76 × 3,553.05
4. Step 4: Simplify right side
   5,407.52x = 28,782,405.32
5. Step 5: Solve for x
   x = 28,782,405.32/5,407.52
6. Step 6: Final answer
   x = 5,322.66