Finding the Fourth Proportional to 105,759.42, 145,946.60 and 60,436.88

Step by Step Solution

1. Step 1: Write the proportion equation
   105,759.42 : 145,946.60 = 60,436.88 : x
2. Step 2: Convert to fraction form
   105,759.42/145,946.60 = 60,436.88/x
3. Step 3: Cross multiply
   105,759.42x = 145,946.60 × 60,436.88
4. Step 4: Simplify right side
   105,759.42x = 8,820,557,150.61
5. Step 5: Solve for x
   x = 8,820,557,150.61/105,759.42
6. Step 6: Final answer
   x = 83,402.09