Finding the Fourth Proportional to 52,654.37, 72,660.50 and 28,781.05

Step by Step Solution

1. Step 1: Write the proportion equation
   52,654.37 : 72,660.50 = 28,781.05 : x
2. Step 2: Convert to fraction form
   52,654.37/72,660.50 = 28,781.05/x
3. Step 3: Cross multiply
   52,654.37x = 72,660.50 × 28,781.05
4. Step 4: Simplify right side
   52,654.37x = 2,091,245,483.53
5. Step 5: Solve for x
   x = 2,091,245,483.53/52,654.37
6. Step 6: Final answer
   x = 39,716.47