Finding the Fourth Proportional to 10,212.42, 15,324.57 and 3,976.74

Step by Step Solution

1. Step 1: Write the proportion equation
   10,212.42 : 15,324.57 = 3,976.74 : x
2. Step 2: Convert to fraction form
   10,212.42/15,324.57 = 3,976.74/x
3. Step 3: Cross multiply
   10,212.42x = 15,324.57 × 3,976.74
4. Step 4: Simplify right side
   10,212.42x = 60,941,830.50
5. Step 5: Solve for x
   x = 60,941,830.50/10,212.42
6. Step 6: Final answer
   x = 5,967.42