Finding the Fourth Proportional to 10,928.50, 15,081.42 and 5,960.50

Step by Step Solution

1. Step 1: Write the proportion equation
   10,928.50 : 15,081.42 = 5,960.50 : x
2. Step 2: Convert to fraction form
   10,928.50/15,081.42 = 5,960.50/x
3. Step 3: Cross multiply
   10,928.50x = 15,081.42 × 5,960.50
4. Step 4: Simplify right side
   10,928.50x = 89,892,803.91
5. Step 5: Solve for x
   x = 89,892,803.91/10,928.50
6. Step 6: Final answer
   x = 8,225.54