Finding the Fourth Proportional to 10,306.42, 15,459.42 and 2,910.72

Step by Step Solution

1. Step 1: Write the proportion equation
   10,306.42 : 15,459.42 = 2,910.72 : x
2. Step 2: Convert to fraction form
   10,306.42/15,459.42 = 2,910.72/x
3. Step 3: Cross multiply
   10,306.42x = 15,459.42 × 2,910.72
4. Step 4: Simplify right side
   10,306.42x = 44,998,042.98
5. Step 5: Solve for x
   x = 44,998,042.98/10,306.42
6. Step 6: Final answer
   x = 4,366.02