Finding the Fourth Proportional to 16,963.99, 23,412.50 and 9,513.43

Step by Step Solution

1. Step 1: Write the proportion equation
   16,963.99 : 23,412.50 = 9,513.43 : x
2. Step 2: Convert to fraction form
   16,963.99/23,412.50 = 9,513.43/x
3. Step 3: Cross multiply
   16,963.99x = 23,412.50 × 9,513.43
4. Step 4: Simplify right side
   16,963.99x = 222,733,179.88
5. Step 5: Solve for x
   x = 222,733,179.88/16,963.99
6. Step 6: Final answer
   x = 13,129.76