Finding the Fourth Proportional to 83,663.60, 115,456 and 45,940.32

Step by Step Solution

1. Step 1: Write the proportion equation
   83,663.60 : 115,456 = 45,940.32 : x
2. Step 2: Convert to fraction form
   83,663.60/115,456 = 45,940.32/x
3. Step 3: Cross multiply
   83,663.60x = 115,456 × 45,940.32
4. Step 4: Simplify right side
   83,663.60x = 5,304,085,585.92
5. Step 5: Solve for x
   x = 5,304,085,585.92/83,663.60
6. Step 6: Final answer
   x = 63,397.77