Finding the Fourth Proportional to 10,876.50, 15,009.57 and 5,908.50

Step by Step Solution

1. Step 1: Write the proportion equation
   10,876.50 : 15,009.57 = 5,908.50 : x
2. Step 2: Convert to fraction form
   10,876.50/15,009.57 = 5,908.50/x
3. Step 3: Cross multiply
   10,876.50x = 15,009.57 × 5,908.50
4. Step 4: Simplify right side
   10,876.50x = 88,684,044.35
5. Step 5: Solve for x
   x = 88,684,044.35/10,876.50
6. Step 6: Final answer
   x = 8,153.73