Finding the Fourth Proportional to 10,153.20, 15,226.88 and 3,912.72

Step by Step Solution

1. Step 1: Write the proportion equation
   10,153.20 : 15,226.88 = 3,912.72 : x
2. Step 2: Convert to fraction form
   10,153.20/15,226.88 = 3,912.72/x
3. Step 3: Cross multiply
   10,153.20x = 15,226.88 × 3,912.72
4. Step 4: Simplify right side
   10,153.20x = 59,578,517.91
5. Step 5: Solve for x
   x = 59,578,517.91/10,153.20
6. Step 6: Final answer
   x = 5,867.95