Finding the Fourth Proportional to 52,821.88, 72,876.09 and 30,144.50

Step by Step Solution

1. Step 1: Write the proportion equation
   52,821.88 : 72,876.09 = 30,144.50 : x
2. Step 2: Convert to fraction form
   52,821.88/72,876.09 = 30,144.50/x
3. Step 3: Cross multiply
   52,821.88x = 72,876.09 × 30,144.50
4. Step 4: Simplify right side
   52,821.88x = 2,196,813,295.01
5. Step 5: Solve for x
   x = 2,196,813,295.01/52,821.88
6. Step 6: Final answer
   x = 41,589.08