Finding the Fourth Proportional to 20,152.76, 27,795.72 and 12,184.79

Step by Step Solution

1. Step 1: Write the proportion equation
   20,152.76 : 27,795.72 = 12,184.79 : x
2. Step 2: Convert to fraction form
   20,152.76/27,795.72 = 12,184.79/x
3. Step 3: Cross multiply
   20,152.76x = 27,795.72 × 12,184.79
4. Step 4: Simplify right side
   20,152.76x = 338,685,011.10
5. Step 5: Solve for x
   x = 338,685,011.10/20,152.76
6. Step 6: Final answer
   x = 16,805.89