Finding the Fourth Proportional to 13,022.85, 17,981.82 and 12,027.72

Step by Step Solution

1. Step 1: Write the proportion equation
   13,022.85 : 17,981.82 = 12,027.72 : x
2. Step 2: Convert to fraction form
   13,022.85/17,981.82 = 12,027.72/x
3. Step 3: Cross multiply
   13,022.85x = 17,981.82 × 12,027.72
4. Step 4: Simplify right side
   13,022.85x = 216,280,296.05
5. Step 5: Solve for x
   x = 216,280,296.05/13,022.85
6. Step 6: Final answer
   x = 16,607.75