Finding the Fourth Proportional to 5,612.55, 8,419.12 and 2,491.82

Step by Step Solution

1. Step 1: Write the proportion equation
   5,612.55 : 8,419.12 = 2,491.82 : x
2. Step 2: Convert to fraction form
   5,612.55/8,419.12 = 2,491.82/x
3. Step 3: Cross multiply
   5,612.55x = 8,419.12 × 2,491.82
4. Step 4: Simplify right side
   5,612.55x = 20,978,931.60
5. Step 5: Solve for x
   x = 20,978,931.60/5,612.55
6. Step 6: Final answer
   x = 3,737.86