Finding the Fourth Proportional to 105,733.89, 145,899.29 and 60,414.80

Step by Step Solution

1. Step 1: Write the proportion equation
   105,733.89 : 145,899.29 = 60,414.80 : x
2. Step 2: Convert to fraction form
   105,733.89/145,899.29 = 60,414.80/x
3. Step 3: Cross multiply
   105,733.89x = 145,899.29 × 60,414.80
4. Step 4: Simplify right side
   105,733.89x = 8,814,475,847.03
5. Step 5: Solve for x
   x = 8,814,475,847.03/105,733.89
6. Step 6: Final answer
   x = 83,364.72