Finding the Fourth Proportional to 83,986.50, 125,978.99 and 34,054.73

Step by Step Solution

1. Step 1: Write the proportion equation
   83,986.50 : 125,978.99 = 34,054.73 : x
2. Step 2: Convert to fraction form
   83,986.50/125,978.99 = 34,054.73/x
3. Step 3: Cross multiply
   83,986.50x = 125,978.99 × 34,054.73
4. Step 4: Simplify right side
   83,986.50x = 4,290,179,689.95
5. Step 5: Solve for x
   x = 4,290,179,689.95/83,986.50
6. Step 6: Final answer
   x = 51,081.78