Finding the Fourth Proportional to 108,210.38, 149,346.72 and 65,760.71

Step by Step Solution

1. Step 1: Write the proportion equation
   108,210.38 : 149,346.72 = 65,760.71 : x
2. Step 2: Convert to fraction form
   108,210.38/149,346.72 = 65,760.71/x
3. Step 3: Cross multiply
   108,210.38x = 149,346.72 × 65,760.71
4. Step 4: Simplify right side
   108,210.38x = 9,821,145,596.64
5. Step 5: Solve for x
   x = 9,821,145,596.64/108,210.38
6. Step 6: Final answer
   x = 90,759.74