Finding the Fourth Proportional to 63,648.59, 87,730.29 and 50,879.34

Step by Step Solution

1. Step 1: Write the proportion equation
   63,648.59 : 87,730.29 = 50,879.34 : x
2. Step 2: Convert to fraction form
   63,648.59/87,730.29 = 50,879.34/x
3. Step 3: Cross multiply
   63,648.59x = 87,730.29 × 50,879.34
4. Step 4: Simplify right side
   63,648.59x = 4,463,659,253.21
5. Step 5: Solve for x
   x = 4,463,659,253.21/63,648.59
6. Step 6: Final answer
   x = 70,129.75