Finding the Fourth Proportional to 105,625.72, 145,760.36 and 60,302.42

Step by Step Solution

1. Step 1: Write the proportion equation
   105,625.72 : 145,760.36 = 60,302.42 : x
2. Step 2: Convert to fraction form
   105,625.72/145,760.36 = 60,302.42/x
3. Step 3: Cross multiply
   105,625.72x = 145,760.36 × 60,302.42
4. Step 4: Simplify right side
   105,625.72x = 8,789,703,123.46
5. Step 5: Solve for x
   x = 8,789,703,123.46/105,625.72
6. Step 6: Final answer
   x = 83,215.56