Finding the Fourth Proportional to 8,881.59, 12,257.31 and 5,105.37

Step by Step Solution

1. Step 1: Write the proportion equation
   8,881.59 : 12,257.31 = 5,105.37 : x
2. Step 2: Convert to fraction form
   8,881.59/12,257.31 = 5,105.37/x
3. Step 3: Cross multiply
   8,881.59x = 12,257.31 × 5,105.37
4. Step 4: Simplify right side
   8,881.59x = 62,578,102.75
5. Step 5: Solve for x
   x = 62,578,102.75/8,881.59
6. Step 6: Final answer
   x = 7,045.82