Finding the Fourth Proportional to 52,139.95, 71,953.50 and 28,267

Step by Step Solution

1. Step 1: Write the proportion equation
   52,139.95 : 71,953.50 = 28,267 : x
2. Step 2: Convert to fraction form
   52,139.95/71,953.50 = 28,267/x
3. Step 3: Cross multiply
   52,139.95x = 71,953.50 × 28,267
4. Step 4: Simplify right side
   52,139.95x = 2,033,909,584.50
5. Step 5: Solve for x
   x = 2,033,909,584.50/52,139.95
6. Step 6: Final answer
   x = 39,008.66