Finding the Fourth Proportional to 105,684.56, 145,839.18 and 60,353.69

Step by Step Solution

1. Step 1: Write the proportion equation
   105,684.56 : 145,839.18 = 60,353.69 : x
2. Step 2: Convert to fraction form
   105,684.56/145,839.18 = 60,353.69/x
3. Step 3: Cross multiply
   105,684.56x = 145,839.18 × 60,353.69
4. Step 4: Simplify right side
   105,684.56x = 8,801,932,156.70
5. Step 5: Solve for x
   x = 8,801,932,156.70/105,684.56
6. Step 6: Final answer
   x = 83,284.94