Finding the Fourth Proportional to 52,832.82, 72,911.16 and 28,959.48

Step by Step Solution

1. Step 1: Write the proportion equation
   52,832.82 : 72,911.16 = 28,959.48 : x
2. Step 2: Convert to fraction form
   52,832.82/72,911.16 = 28,959.48/x
3. Step 3: Cross multiply
   52,832.82x = 72,911.16 × 28,959.48
4. Step 4: Simplify right side
   52,832.82x = 2,111,469,279.80
5. Step 5: Solve for x
   x = 2,111,469,279.80/52,832.82
6. Step 6: Final answer
   x = 39,965.11