Finding the Fourth Proportional to 52,418.52, 72,338.71 and 28,545.19

Step by Step Solution

1. Step 1: Write the proportion equation
   52,418.52 : 72,338.71 = 28,545.19 : x
2. Step 2: Convert to fraction form
   52,418.52/72,338.71 = 28,545.19/x
3. Step 3: Cross multiply
   52,418.52x = 72,338.71 × 28,545.19
4. Step 4: Simplify right side
   52,418.52x = 2,064,922,221.30
5. Step 5: Solve for x
   x = 2,064,922,221.30/52,418.52
6. Step 6: Final answer
   x = 39,392.99