Finding the Fourth Proportional to 10,831.78, 16,251.80 and 3,812.52

Step by Step Solution

1. Step 1: Write the proportion equation
   10,831.78 : 16,251.80 = 3,812.52 : x
2. Step 2: Convert to fraction form
   10,831.78/16,251.80 = 3,812.52/x
3. Step 3: Cross multiply
   10,831.78x = 16,251.80 × 3,812.52
4. Step 4: Simplify right side
   10,831.78x = 61,960,312.54
5. Step 5: Solve for x
   x = 61,960,312.54/10,831.78
6. Step 6: Final answer
   x = 5,720.23