Finding the Fourth Proportional to 52,742.36, 72,784.33 and 28,868.83

Step by Step Solution

1. Step 1: Write the proportion equation
   52,742.36 : 72,784.33 = 28,868.83 : x
2. Step 2: Convert to fraction form
   52,742.36/72,784.33 = 28,868.83/x
3. Step 3: Cross multiply
   52,742.36x = 72,784.33 × 28,868.83
4. Step 4: Simplify right side
   52,742.36x = 2,101,198,195.30
5. Step 5: Solve for x
   x = 2,101,198,195.30/52,742.36
6. Step 6: Final answer
   x = 39,838.91