Finding the Fourth Proportional to 108,196.09, 149,308.40 and 65,768.29

Step by Step Solution

1. Step 1: Write the proportion equation
   108,196.09 : 149,308.40 = 65,768.29 : x
2. Step 2: Convert to fraction form
   108,196.09/149,308.40 = 65,768.29/x
3. Step 3: Cross multiply
   108,196.09x = 149,308.40 × 65,768.29
4. Step 4: Simplify right side
   108,196.09x = 9,819,757,941.79
5. Step 5: Solve for x
   x = 9,819,757,941.79/108,196.09
6. Step 6: Final answer
   x = 90,758.90