Finding the Fourth Proportional to 52,820.24, 72,892.49 and 28,946.39

Step by Step Solution

1. Step 1: Write the proportion equation
   52,820.24 : 72,892.49 = 28,946.39 : x
2. Step 2: Convert to fraction form
   52,820.24/72,892.49 = 28,946.39/x
3. Step 3: Cross multiply
   52,820.24x = 72,892.49 × 28,946.39
4. Step 4: Simplify right side
   52,820.24x = 2,109,973,934.42
5. Step 5: Solve for x
   x = 2,109,973,934.42/52,820.24
6. Step 6: Final answer
   x = 39,946.32