Finding the Fourth Proportional to 17,384.57, 23,990.72 and 9,426.81

Step by Step Solution

1. Step 1: Write the proportion equation
   17,384.57 : 23,990.72 = 9,426.81 : x
2. Step 2: Convert to fraction form
   17,384.57/23,990.72 = 9,426.81/x
3. Step 3: Cross multiply
   17,384.57x = 23,990.72 × 9,426.81
4. Step 4: Simplify right side
   17,384.57x = 226,155,959.20
5. Step 5: Solve for x
   x = 226,155,959.20/17,384.57
6. Step 6: Final answer
   x = 13,009.01