Finding the Fourth Proportional to 50,391.83, 69,543.60 and 28,885.16

Step by Step Solution

1. Step 1: Write the proportion equation
   50,391.83 : 69,543.60 = 28,885.16 : x
2. Step 2: Convert to fraction form
   50,391.83/69,543.60 = 28,885.16/x
3. Step 3: Cross multiply
   50,391.83x = 69,543.60 × 28,885.16
4. Step 4: Simplify right side
   50,391.83x = 2,008,778,012.98
5. Step 5: Solve for x
   x = 2,008,778,012.98/50,391.83
6. Step 6: Final answer
   x = 39,863.17