Finding the Fourth Proportional to 105,756.54, 145,923.83 and 60,448.88

Step by Step Solution

1. Step 1: Write the proportion equation
   105,756.54 : 145,923.83 = 60,448.88 : x
2. Step 2: Convert to fraction form
   105,756.54/145,923.83 = 60,448.88/x
3. Step 3: Cross multiply
   105,756.54x = 145,923.83 × 60,448.88
4. Step 4: Simplify right side
   105,756.54x = 8,820,931,786.57
5. Step 5: Solve for x
   x = 8,820,931,786.57/105,756.54
6. Step 6: Final answer
   x = 83,407.91