Finding the Fourth Proportional to 52,810.88, 72,879.01 and 28,938.46

Step by Step Solution

1. Step 1: Write the proportion equation
   52,810.88 : 72,879.01 = 28,938.46 : x
2. Step 2: Convert to fraction form
   52,810.88/72,879.01 = 28,938.46/x
3. Step 3: Cross multiply
   52,810.88x = 72,879.01 × 28,938.46
4. Step 4: Simplify right side
   52,810.88x = 2,109,006,061.18
5. Step 5: Solve for x
   x = 2,109,006,061.18/52,810.88
6. Step 6: Final answer
   x = 39,935.07