Finding the Fourth Proportional to 105,570.86, 145,647.25 and 60,251.36

Step by Step Solution

1. Step 1: Write the proportion equation
   105,570.86 : 145,647.25 = 60,251.36 : x
2. Step 2: Convert to fraction form
   105,570.86/145,647.25 = 60,251.36/x
3. Step 3: Cross multiply
   105,570.86x = 145,647.25 × 60,251.36
4. Step 4: Simplify right side
   105,570.86x = 8,775,444,013.90
5. Step 5: Solve for x
   x = 8,775,444,013.90/105,570.86
6. Step 6: Final answer
   x = 83,123.74