Finding the Fourth Proportional to 52,780.92, 72,834.96 and 28,902.98

Step by Step Solution

1. Step 1: Write the proportion equation
   52,780.92 : 72,834.96 = 28,902.98 : x
2. Step 2: Convert to fraction form
   52,780.92/72,834.96 = 28,902.98/x
3. Step 3: Cross multiply
   52,780.92x = 72,834.96 × 28,902.98
4. Step 4: Simplify right side
   52,780.92x = 2,105,147,028.01
5. Step 5: Solve for x
   x = 2,105,147,028.01/52,780.92
6. Step 6: Final answer
   x = 39,884.62