Finding the Fourth Proportional to 20,465.96, 28,233.83 and 12,506.69

Step by Step Solution

1. Step 1: Write the proportion equation
   20,465.96 : 28,233.83 = 12,506.69 : x
2. Step 2: Convert to fraction form
   20,465.96/28,233.83 = 12,506.69/x
3. Step 3: Cross multiply
   20,465.96x = 28,233.83 × 12,506.69
4. Step 4: Simplify right side
   20,465.96x = 353,111,861.17
5. Step 5: Solve for x
   x = 353,111,861.17/20,465.96
6. Step 6: Final answer
   x = 17,253.62