Finding the Fourth Proportional to 17,384.57, 23,990.81 and 9,426.72

Step by Step Solution

1. Step 1: Write the proportion equation
   17,384.57 : 23,990.81 = 9,426.72 : x
2. Step 2: Convert to fraction form
   17,384.57/23,990.81 = 9,426.72/x
3. Step 3: Cross multiply
   17,384.57x = 23,990.81 × 9,426.72
4. Step 4: Simplify right side
   17,384.57x = 226,154,601.31
5. Step 5: Solve for x
   x = 226,154,601.31/17,384.57
6. Step 6: Final answer
   x = 13,008.93