Finding the Fourth Proportional to 52,762.30, 72,811.98 and 28,890.44

Step by Step Solution

1. Step 1: Write the proportion equation
   52,762.30 : 72,811.98 = 28,890.44 : x
2. Step 2: Convert to fraction form
   52,762.30/72,811.98 = 28,890.44/x
3. Step 3: Cross multiply
   52,762.30x = 72,811.98 × 28,890.44
4. Step 4: Simplify right side
   52,762.30x = 2,103,570,139.47
5. Step 5: Solve for x
   x = 2,103,570,139.47/52,762.30
6. Step 6: Final answer
   x = 39,868.81