Finding the Fourth Proportional to 60,896.16, 84,012 and 39,667.68

Step by Step Solution

1. Step 1: Write the proportion equation
   60,896.16 : 84,012 = 39,667.68 : x
2. Step 2: Convert to fraction form
   60,896.16/84,012 = 39,667.68/x
3. Step 3: Cross multiply
   60,896.16x = 84,012 × 39,667.68
4. Step 4: Simplify right side
   60,896.16x = 3,332,561,132.16
5. Step 5: Solve for x
   x = 3,332,561,132.16/60,896.16
6. Step 6: Final answer
   x = 54,725.31