Finding the Fourth Proportional to 8,115.56, 12,149.61 and 7,337.35

Step by Step Solution

1. Step 1: Write the proportion equation
   8,115.56 : 12,149.61 = 7,337.35 : x
2. Step 2: Convert to fraction form
   8,115.56/12,149.61 = 7,337.35/x
3. Step 3: Cross multiply
   8,115.56x = 12,149.61 × 7,337.35
4. Step 4: Simplify right side
   8,115.56x = 89,145,969.88
5. Step 5: Solve for x
   x = 89,145,969.88/8,115.56
6. Step 6: Final answer
   x = 10,984.58