Finding the Fourth Proportional to 8,859.34, 12,225.89 and 5,322.54

Step by Step Solution

1. Step 1: Write the proportion equation
   8,859.34 : 12,225.89 = 5,322.54 : x
2. Step 2: Convert to fraction form
   8,859.34/12,225.89 = 5,322.54/x
3. Step 3: Cross multiply
   8,859.34x = 12,225.89 × 5,322.54
4. Step 4: Simplify right side
   8,859.34x = 65,072,761.95
5. Step 5: Solve for x
   x = 65,072,761.95/8,859.34
6. Step 6: Final answer
   x = 7,345.11