Finding the Fourth Proportional to 59,794.78, 81,919.25 and 57,552.70

Step by Step Solution

1. Step 1: Write the proportion equation
   59,794.78 : 81,919.25 = 57,552.70 : x
2. Step 2: Convert to fraction form
   59,794.78/81,919.25 = 57,552.70/x
3. Step 3: Cross multiply
   59,794.78x = 81,919.25 × 57,552.70
4. Step 4: Simplify right side
   59,794.78x = 4,714,674,019.48
5. Step 5: Solve for x
   x = 4,714,674,019.48/59,794.78
6. Step 6: Final answer
   x = 78,847.59