Finding the Fourth Proportional to 105,573.89, 145,694.34 and 60,250.97

Step by Step Solution

1. Step 1: Write the proportion equation
   105,573.89 : 145,694.34 = 60,250.97 : x
2. Step 2: Convert to fraction form
   105,573.89/145,694.34 = 60,250.97/x
3. Step 3: Cross multiply
   105,573.89x = 145,694.34 × 60,250.97
4. Step 4: Simplify right side
   105,573.89x = 8,778,225,672.75
5. Step 5: Solve for x
   x = 8,778,225,672.75/105,573.89
6. Step 6: Final answer
   x = 83,147.69