Finding the Fourth Proportional to 8,144.84, 12,155.74 and 7,357.52

Step by Step Solution

1. Step 1: Write the proportion equation
   8,144.84 : 12,155.74 = 7,357.52 : x
2. Step 2: Convert to fraction form
   8,144.84/12,155.74 = 7,357.52/x
3. Step 3: Cross multiply
   8,144.84x = 12,155.74 × 7,357.52
4. Step 4: Simplify right side
   8,144.84x = 89,436,100.16
5. Step 5: Solve for x
   x = 89,436,100.16/8,144.84
6. Step 6: Final answer
   x = 10,980.71