Finding the Fourth Proportional to 8,815.34, 12,155.19 and 5,624.37

Step by Step Solution

1. Step 1: Write the proportion equation
   8,815.34 : 12,155.19 = 5,624.37 : x
2. Step 2: Convert to fraction form
   8,815.34/12,155.19 = 5,624.37/x
3. Step 3: Cross multiply
   8,815.34x = 12,155.19 × 5,624.37
4. Step 4: Simplify right side
   8,815.34x = 68,365,285.98
5. Step 5: Solve for x
   x = 68,365,285.98/8,815.34
6. Step 6: Final answer
   x = 7,755.27