Finding the Fourth Proportional to 10,151.55, 15,221.49 and 3,910.76

Step by Step Solution

1. Step 1: Write the proportion equation
   10,151.55 : 15,221.49 = 3,910.76 : x
2. Step 2: Convert to fraction form
   10,151.55/15,221.49 = 3,910.76/x
3. Step 3: Cross multiply
   10,151.55x = 15,221.49 × 3,910.76
4. Step 4: Simplify right side
   10,151.55x = 59,527,518.12
5. Step 5: Solve for x
   x = 59,527,518.12/10,151.55
6. Step 6: Final answer
   x = 5,863.88