Finding the Fourth Proportional to 52,812.06, 72,879.71 and 28,938.52

Step by Step Solution

1. Step 1: Write the proportion equation
   52,812.06 : 72,879.71 = 28,938.52 : x
2. Step 2: Convert to fraction form
   52,812.06/72,879.71 = 28,938.52/x
3. Step 3: Cross multiply
   52,812.06x = 72,879.71 × 28,938.52
4. Step 4: Simplify right side
   52,812.06x = 2,109,030,945.43
5. Step 5: Solve for x
   x = 2,109,030,945.43/52,812.06
6. Step 6: Final answer
   x = 39,934.65