Finding the Fourth Proportional to 155,144.34, 232,711.88 and 42,831.41

Step by Step Solution

1. Step 1: Write the proportion equation
   155,144.34 : 232,711.88 = 42,831.41 : x
2. Step 2: Convert to fraction form
   155,144.34/232,711.88 = 42,831.41/x
3. Step 3: Cross multiply
   155,144.34x = 232,711.88 × 42,831.41
4. Step 4: Simplify right side
   155,144.34x = 9,967,377,439.10
5. Step 5: Solve for x
   x = 9,967,377,439.10/155,144.34
6. Step 6: Final answer
   x = 64,245.83