Finding the Fourth Proportional to 52,738.29, 72,779.72 and 28,865.97

Step by Step Solution

1. Step 1: Write the proportion equation
   52,738.29 : 72,779.72 = 28,865.97 : x
2. Step 2: Convert to fraction form
   52,738.29/72,779.72 = 28,865.97/x
3. Step 3: Cross multiply
   52,738.29x = 72,779.72 × 28,865.97
4. Step 4: Simplify right side
   52,738.29x = 2,100,857,069.80
5. Step 5: Solve for x
   x = 2,100,857,069.80/52,738.29
6. Step 6: Final answer
   x = 39,835.52