Finding the Fourth Proportional to 60,078.74, 90,062.37 and 28,503.62

Step by Step Solution

1. Step 1: Write the proportion equation
   60,078.74 : 90,062.37 = 28,503.62 : x
2. Step 2: Convert to fraction form
   60,078.74/90,062.37 = 28,503.62/x
3. Step 3: Cross multiply
   60,078.74x = 90,062.37 × 28,503.62
4. Step 4: Simplify right side
   60,078.74x = 2,567,103,570.78
5. Step 5: Solve for x
   x = 2,567,103,570.78/60,078.74
6. Step 6: Final answer
   x = 42,728.98