Finding the Fourth Proportional to 11,426.99, 17,139.41 and 3,634.43

Step by Step Solution

1. Step 1: Write the proportion equation
   11,426.99 : 17,139.41 = 3,634.43 : x
2. Step 2: Convert to fraction form
   11,426.99/17,139.41 = 3,634.43/x
3. Step 3: Cross multiply
   11,426.99x = 17,139.41 × 3,634.43
4. Step 4: Simplify right side
   11,426.99x = 62,291,967.71
5. Step 5: Solve for x
   x = 62,291,967.71/11,426.99
6. Step 6: Final answer
   x = 5,451.30