Finding the Fourth Proportional to 10,081.50, 13,875.75 and 8,878.59

Step by Step Solution

1. Step 1: Write the proportion equation
   10,081.50 : 13,875.75 = 8,878.59 : x
2. Step 2: Convert to fraction form
   10,081.50/13,875.75 = 8,878.59/x
3. Step 3: Cross multiply
   10,081.50x = 13,875.75 × 8,878.59
4. Step 4: Simplify right side
   10,081.50x = 123,197,095.19
5. Step 5: Solve for x
   x = 123,197,095.19/10,081.50
6. Step 6: Final answer
   x = 12,220.12