Finding the Fourth Proportional to 83,654.22, 115,392.06 and 49,640.28

Step by Step Solution

1. Step 1: Write the proportion equation
   83,654.22 : 115,392.06 = 49,640.28 : x
2. Step 2: Convert to fraction form
   83,654.22/115,392.06 = 49,640.28/x
3. Step 3: Cross multiply
   83,654.22x = 115,392.06 × 49,640.28
4. Step 4: Simplify right side
   83,654.22x = 5,728,094,168.18
5. Step 5: Solve for x
   x = 5,728,094,168.18/83,654.22
6. Step 6: Final answer
   x = 68,473.46