Finding the Fourth Proportional to 8,452.55, 11,653.89 and 5,422.31

Step by Step Solution

1. Step 1: Write the proportion equation
   8,452.55 : 11,653.89 = 5,422.31 : x
2. Step 2: Convert to fraction form
   8,452.55/11,653.89 = 5,422.31/x
3. Step 3: Cross multiply
   8,452.55x = 11,653.89 × 5,422.31
4. Step 4: Simplify right side
   8,452.55x = 63,190,999.89
5. Step 5: Solve for x
   x = 63,190,999.89/8,452.55
6. Step 6: Final answer
   x = 7,475.97