Finding the Fourth Proportional to 20,527.91, 28,323.62 and 12,461.37

Step by Step Solution

1. Step 1: Write the proportion equation
   20,527.91 : 28,323.62 = 12,461.37 : x
2. Step 2: Convert to fraction form
   20,527.91/28,323.62 = 12,461.37/x
3. Step 3: Cross multiply
   20,527.91x = 28,323.62 × 12,461.37
4. Step 4: Simplify right side
   20,527.91x = 352,951,136.52
5. Step 5: Solve for x
   x = 352,951,136.52/20,527.91
6. Step 6: Final answer
   x = 17,193.72