Finding the Fourth Proportional to 8,881.68, 12,257.02 and 5,105.54

Step by Step Solution

1. Step 1: Write the proportion equation
   8,881.68 : 12,257.02 = 5,105.54 : x
2. Step 2: Convert to fraction form
   8,881.68/12,257.02 = 5,105.54/x
3. Step 3: Cross multiply
   8,881.68x = 12,257.02 × 5,105.54
4. Step 4: Simplify right side
   8,881.68x = 62,578,705.89
5. Step 5: Solve for x
   x = 62,578,705.89/8,881.68
6. Step 6: Final answer
   x = 7,045.82