Finding the Fourth Proportional to 8,153.78, 11,250.18 and 5,168.52

Step by Step Solution

1. Step 1: Write the proportion equation
   8,153.78 : 11,250.18 = 5,168.52 : x
2. Step 2: Convert to fraction form
   8,153.78/11,250.18 = 5,168.52/x
3. Step 3: Cross multiply
   8,153.78x = 11,250.18 × 5,168.52
4. Step 4: Simplify right side
   8,153.78x = 58,146,780.33
5. Step 5: Solve for x
   x = 58,146,780.33/8,153.78
6. Step 6: Final answer
   x = 7,131.27