Finding the Fourth Proportional to 83,478.36, 115,200.27 and 49,016.43

Step by Step Solution

1. Step 1: Write the proportion equation
   83,478.36 : 115,200.27 = 49,016.43 : x
2. Step 2: Convert to fraction form
   83,478.36/115,200.27 = 49,016.43/x
3. Step 3: Cross multiply
   83,478.36x = 115,200.27 × 49,016.43
4. Step 4: Simplify right side
   83,478.36x = 5,646,705,970.44
5. Step 5: Solve for x
   x = 5,646,705,970.44/83,478.36
6. Step 6: Final answer
   x = 67,642.75