Finding the Fourth Proportional to 105,573.92, 145,694.38 and 60,251

Step by Step Solution

1. Step 1: Write the proportion equation
   105,573.92 : 145,694.38 = 60,251 : x
2. Step 2: Convert to fraction form
   105,573.92/145,694.38 = 60,251/x
3. Step 3: Cross multiply
   105,573.92x = 145,694.38 × 60,251
4. Step 4: Simplify right side
   105,573.92x = 8,778,232,089.38
5. Step 5: Solve for x
   x = 8,778,232,089.38/105,573.92
6. Step 6: Final answer
   x = 83,147.73