Finding the Fourth Proportional to 10,930.64, 15,083.72 and 5,961.68

Step by Step Solution

1. Step 1: Write the proportion equation
   10,930.64 : 15,083.72 = 5,961.68 : x
2. Step 2: Convert to fraction form
   10,930.64/15,083.72 = 5,961.68/x
3. Step 3: Cross multiply
   10,930.64x = 15,083.72 × 5,961.68
4. Step 4: Simplify right side
   10,930.64x = 89,924,311.85
5. Step 5: Solve for x
   x = 89,924,311.85/10,930.64
6. Step 6: Final answer
   x = 8,226.81