Finding the Fourth Proportional to 20,215.62, 27,889.98 and 20,184.50

Step by Step Solution

1. Step 1: Write the proportion equation
   20,215.62 : 27,889.98 = 20,184.50 : x
2. Step 2: Convert to fraction form
   20,215.62/27,889.98 = 20,184.50/x
3. Step 3: Cross multiply
   20,215.62x = 27,889.98 × 20,184.50
4. Step 4: Simplify right side
   20,215.62x = 562,945,301.31
5. Step 5: Solve for x
   x = 562,945,301.31/20,215.62
6. Step 6: Final answer
   x = 27,847.05