Finding the Fourth Proportional to 140,899.82, 194,441.76 and 77,236.25

Step by Step Solution

1. Step 1: Write the proportion equation
   140,899.82 : 194,441.76 = 77,236.25 : x
2. Step 2: Convert to fraction form
   140,899.82/194,441.76 = 77,236.25/x
3. Step 3: Cross multiply
   140,899.82x = 194,441.76 × 77,236.25
4. Step 4: Simplify right side
   140,899.82x = 15,017,951,413.59
5. Step 5: Solve for x
   x = 15,017,951,413.59/140,899.82
6. Step 6: Final answer
   x = 106,586.03