Finding the Fourth Proportional to 52,499.78, 72,449.52 and 28,626.39

Step by Step Solution

1. Step 1: Write the proportion equation
   52,499.78 : 72,449.52 = 28,626.39 : x
2. Step 2: Convert to fraction form
   52,499.78/72,449.52 = 28,626.39/x
3. Step 3: Cross multiply
   52,499.78x = 72,449.52 × 28,626.39
4. Step 4: Simplify right side
   52,499.78x = 2,073,968,214.83
5. Step 5: Solve for x
   x = 2,073,968,214.83/52,499.78
6. Step 6: Final answer
   x = 39,504.32