Finding the Fourth Proportional to 83,387.94, 115,086.54 and 49,393.80

Step by Step Solution

1. Step 1: Write the proportion equation
   83,387.94 : 115,086.54 = 49,393.80 : x
2. Step 2: Convert to fraction form
   83,387.94/115,086.54 = 49,393.80/x
3. Step 3: Cross multiply
   83,387.94x = 115,086.54 × 49,393.80
4. Step 4: Simplify right side
   83,387.94x = 5,684,561,539.45
5. Step 5: Solve for x
   x = 5,684,561,539.45/83,387.94
6. Step 6: Final answer
   x = 68,170.07