Finding the Fourth Proportional to 92,945.50, 139,339.86 and 40,315.34

Step by Step Solution

1. Step 1: Write the proportion equation
   92,945.50 : 139,339.86 = 40,315.34 : x
2. Step 2: Convert to fraction form
   92,945.50/139,339.86 = 40,315.34/x
3. Step 3: Cross multiply
   92,945.50x = 139,339.86 × 40,315.34
4. Step 4: Simplify right side
   92,945.50x = 5,617,533,831.45
5. Step 5: Solve for x
   x = 5,617,533,831.45/92,945.50
6. Step 6: Final answer
   x = 60,439.01