Finding the Fourth Proportional to 8,375.91, 12,552.24 and 3,688.89

Step by Step Solution

1. Step 1: Write the proportion equation
   8,375.91 : 12,552.24 = 3,688.89 : x
2. Step 2: Convert to fraction form
   8,375.91/12,552.24 = 3,688.89/x
3. Step 3: Cross multiply
   8,375.91x = 12,552.24 × 3,688.89
4. Step 4: Simplify right side
   8,375.91x = 46,303,832.61
5. Step 5: Solve for x
   x = 46,303,832.61/8,375.91
6. Step 6: Final answer
   x = 5,528.22