Finding the Fourth Proportional to 52,763.86, 72,814.10 and 28,890.52

Step by Step Solution

1. Step 1: Write the proportion equation
   52,763.86 : 72,814.10 = 28,890.52 : x
2. Step 2: Convert to fraction form
   52,763.86/72,814.10 = 28,890.52/x
3. Step 3: Cross multiply
   52,763.86x = 72,814.10 × 28,890.52
4. Step 4: Simplify right side
   52,763.86x = 2,103,637,212.33
5. Step 5: Solve for x
   x = 2,103,637,212.33/52,763.86
6. Step 6: Final answer
   x = 39,868.90