Finding the Fourth Proportional to 52,780.46, 72,834.30 and 28,902.52

Step by Step Solution

1. Step 1: Write the proportion equation
   52,780.46 : 72,834.30 = 28,902.52 : x
2. Step 2: Convert to fraction form
   52,780.46/72,834.30 = 28,902.52/x
3. Step 3: Cross multiply
   52,780.46x = 72,834.30 × 28,902.52
4. Step 4: Simplify right side
   52,780.46x = 2,105,094,903.48
5. Step 5: Solve for x
   x = 2,105,094,903.48/52,780.46
6. Step 6: Final answer
   x = 39,883.99