Finding the Fourth Proportional to 83,880, 115,755.21 and 46,155.06

Step by Step Solution

1. Step 1: Write the proportion equation
   83,880 : 115,755.21 = 46,155.06 : x
2. Step 2: Convert to fraction form
   83,880/115,755.21 = 46,155.06/x
3. Step 3: Cross multiply
   83,880x = 115,755.21 × 46,155.06
4. Step 4: Simplify right side
   83,880x = 5,342,688,662.86
5. Step 5: Solve for x
   x = 5,342,688,662.86/83,880
6. Step 6: Final answer
   x = 63,694.43