Finding the Fourth Proportional to 5,427.02, 7,487.15 and 3,540.80

Step by Step Solution

1. Step 1: Write the proportion equation
   5,427.02 : 7,487.15 = 3,540.80 : x
2. Step 2: Convert to fraction form
   5,427.02/7,487.15 = 3,540.80/x
3. Step 3: Cross multiply
   5,427.02x = 7,487.15 × 3,540.80
4. Step 4: Simplify right side
   5,427.02x = 26,510,500.72
5. Step 5: Solve for x
   x = 26,510,500.72/5,427.02
6. Step 6: Final answer
   x = 4,884.91