Finding the Fourth Proportional to 23,426.18, 35,139.20 and 9,389.69

Step by Step Solution

1. Step 1: Write the proportion equation
   23,426.18 : 35,139.20 = 9,389.69 : x
2. Step 2: Convert to fraction form
   23,426.18/35,139.20 = 9,389.69/x
3. Step 3: Cross multiply
   23,426.18x = 35,139.20 × 9,389.69
4. Step 4: Simplify right side
   23,426.18x = 329,945,972.20
5. Step 5: Solve for x
   x = 329,945,972.20/23,426.18
6. Step 6: Final answer
   x = 14,084.50