Finding the Fourth Proportional to 20,944.23, 28,901.52 and 12,445.98

Step by Step Solution

1. Step 1: Write the proportion equation
   20,944.23 : 28,901.52 = 12,445.98 : x
2. Step 2: Convert to fraction form
   20,944.23/28,901.52 = 12,445.98/x
3. Step 3: Cross multiply
   20,944.23x = 28,901.52 × 12,445.98
4. Step 4: Simplify right side
   20,944.23x = 359,707,739.89
5. Step 5: Solve for x
   x = 359,707,739.89/20,944.23
6. Step 6: Final answer
   x = 17,174.55