Finding the Fourth Proportional to 108,150.78, 149,246.49 and 60,404.79

Step by Step Solution

1. Step 1: Write the proportion equation
   108,150.78 : 149,246.49 = 60,404.79 : x
2. Step 2: Convert to fraction form
   108,150.78/149,246.49 = 60,404.79/x
3. Step 3: Cross multiply
   108,150.78x = 149,246.49 × 60,404.79
4. Step 4: Simplify right side
   108,150.78x = 9,015,202,886.69
5. Step 5: Solve for x
   x = 9,015,202,886.69/108,150.78
6. Step 6: Final answer
   x = 83,357.72