Finding the Fourth Proportional to 52,807.88, 72,874.86 and 28,935.46

Step by Step Solution

1. Step 1: Write the proportion equation
   52,807.88 : 72,874.86 = 28,935.46 : x
2. Step 2: Convert to fraction form
   52,807.88/72,874.86 = 28,935.46/x
3. Step 3: Cross multiply
   52,807.88x = 72,874.86 × 28,935.46
4. Step 4: Simplify right side
   52,807.88x = 2,108,667,596.54
5. Step 5: Solve for x
   x = 2,108,667,596.54/52,807.88
6. Step 6: Final answer
   x = 39,930.93