Finding the Fourth Proportional to 105,630.23, 145,773.74 and 60,315.59

Step by Step Solution

1. Step 1: Write the proportion equation
   105,630.23 : 145,773.74 = 60,315.59 : x
2. Step 2: Convert to fraction form
   105,630.23/145,773.74 = 60,315.59/x
3. Step 3: Cross multiply
   105,630.23x = 145,773.74 × 60,315.59
4. Step 4: Simplify right side
   105,630.23x = 8,792,429,134.61
5. Step 5: Solve for x
   x = 8,792,429,134.61/105,630.23
6. Step 6: Final answer
   x = 83,237.81