Finding the Fourth Proportional to 8,854.74, 12,221.82 and 5,495.58

Step by Step Solution

1. Step 1: Write the proportion equation
   8,854.74 : 12,221.82 = 5,495.58 : x
2. Step 2: Convert to fraction form
   8,854.74/12,221.82 = 5,495.58/x
3. Step 3: Cross multiply
   8,854.74x = 12,221.82 × 5,495.58
4. Step 4: Simplify right side
   8,854.74x = 67,165,989.56
5. Step 5: Solve for x
   x = 67,165,989.56/8,854.74
6. Step 6: Final answer
   x = 7,585.31