Finding the Fourth Proportional to 52,651.96, 72,659.54 and 28,778.62

Step by Step Solution

1. Step 1: Write the proportion equation
   52,651.96 : 72,659.54 = 28,778.62 : x
2. Step 2: Convert to fraction form
   52,651.96/72,659.54 = 28,778.62/x
3. Step 3: Cross multiply
   52,651.96x = 72,659.54 × 28,778.62
4. Step 4: Simplify right side
   52,651.96x = 2,091,041,291.03
5. Step 5: Solve for x
   x = 2,091,041,291.03/52,651.96
6. Step 6: Final answer
   x = 39,714.41