Finding the Fourth Proportional to 60,786.72, 83,805.84 and 39,558.24

Step by Step Solution

1. Step 1: Write the proportion equation
   60,786.72 : 83,805.84 = 39,558.24 : x
2. Step 2: Convert to fraction form
   60,786.72/83,805.84 = 39,558.24/x
3. Step 3: Cross multiply
   60,786.72x = 83,805.84 × 39,558.24
4. Step 4: Simplify right side
   60,786.72x = 3,315,211,532.12
5. Step 5: Solve for x
   x = 3,315,211,532.12/60,786.72
6. Step 6: Final answer
   x = 54,538.42