Finding the Fourth Proportional to 8,881.56, 12,256.96 and 5,105.95

Step by Step Solution

1. Step 1: Write the proportion equation
   8,881.56 : 12,256.96 = 5,105.95 : x
2. Step 2: Convert to fraction form
   8,881.56/12,256.96 = 5,105.95/x
3. Step 3: Cross multiply
   8,881.56x = 12,256.96 × 5,105.95
4. Step 4: Simplify right side
   8,881.56x = 62,583,424.91
5. Step 5: Solve for x
   x = 62,583,424.91/8,881.56
6. Step 6: Final answer
   x = 7,046.45