Finding the Fourth Proportional to 50,685.68, 69,945.15 and 28,025.63

Step by Step Solution

1. Step 1: Write the proportion equation
   50,685.68 : 69,945.15 = 28,025.63 : x
2. Step 2: Convert to fraction form
   50,685.68/69,945.15 = 28,025.63/x
3. Step 3: Cross multiply
   50,685.68x = 69,945.15 × 28,025.63
4. Step 4: Simplify right side
   50,685.68x = 1,960,256,911.86
5. Step 5: Solve for x
   x = 1,960,256,911.86/50,685.68
6. Step 6: Final answer
   x = 38,674.77