Finding the Fourth Proportional to 83,881.17, 115,717.86 and 49,870.36

Step by Step Solution

1. Step 1: Write the proportion equation
   83,881.17 : 115,717.86 = 49,870.36 : x
2. Step 2: Convert to fraction form
   83,881.17/115,717.86 = 49,870.36/x
3. Step 3: Cross multiply
   83,881.17x = 115,717.86 × 49,870.36
4. Step 4: Simplify right side
   83,881.17x = 5,770,891,336.63
5. Step 5: Solve for x
   x = 5,770,891,336.63/83,881.17
6. Step 6: Final answer
   x = 68,798.41