Finding the Fourth Proportional to 16,842.10, 23,613.50 and 16,842.10

Step by Step Solution

1. Step 1: Write the proportion equation
   16,842.10 : 23,613.50 = 16,842.10 : x
2. Step 2: Convert to fraction form
   16,842.10/23,613.50 = 16,842.10/x
3. Step 3: Cross multiply
   16,842.10x = 23,613.50 × 16,842.10
4. Step 4: Simplify right side
   16,842.10x = 397,700,928.35
5. Step 5: Solve for x
   x = 397,700,928.35/16,842.10
6. Step 6: Final answer
   x = 23,613.50