Finding the Fourth Proportional to 12,052.78, 18,086.29 and 5,819.22

Step by Step Solution

1. Step 1: Write the proportion equation
   12,052.78 : 18,086.29 = 5,819.22 : x
2. Step 2: Convert to fraction form
   12,052.78/18,086.29 = 5,819.22/x
3. Step 3: Cross multiply
   12,052.78x = 18,086.29 × 5,819.22
4. Step 4: Simplify right side
   12,052.78x = 105,248,085.95
5. Step 5: Solve for x
   x = 105,248,085.95/12,052.78
6. Step 6: Final answer
   x = 8,732.27