Finding the Fourth Proportional to 8,281.42, 11,435.67 and 5,635.15

Step by Step Solution

1. Step 1: Write the proportion equation
   8,281.42 : 11,435.67 = 5,635.15 : x
2. Step 2: Convert to fraction form
   8,281.42/11,435.67 = 5,635.15/x
3. Step 3: Cross multiply
   8,281.42x = 11,435.67 × 5,635.15
4. Step 4: Simplify right side
   8,281.42x = 64,441,715.80
5. Step 5: Solve for x
   x = 64,441,715.80/8,281.42
6. Step 6: Final answer
   x = 7,781.48