Finding the Fourth Proportional to 52,069.54, 78,111.94 and 16,519

Step by Step Solution

1. Step 1: Write the proportion equation
   52,069.54 : 78,111.94 = 16,519 : x
2. Step 2: Convert to fraction form
   52,069.54/78,111.94 = 16,519/x
3. Step 3: Cross multiply
   52,069.54x = 78,111.94 × 16,519
4. Step 4: Simplify right side
   52,069.54x = 1,290,331,136.86
5. Step 5: Solve for x
   x = 1,290,331,136.86/52,069.54
6. Step 6: Final answer
   x = 24,780.92