Finding the Fourth Proportional to 36,805.18, 55,224.18 and 13,426.15

Step by Step Solution

1. Step 1: Write the proportion equation
   36,805.18 : 55,224.18 = 13,426.15 : x
2. Step 2: Convert to fraction form
   36,805.18/55,224.18 = 13,426.15/x
3. Step 3: Cross multiply
   36,805.18x = 55,224.18 × 13,426.15
4. Step 4: Simplify right side
   36,805.18x = 741,448,124.31
5. Step 5: Solve for x
   x = 741,448,124.31/36,805.18
6. Step 6: Final answer
   x = 20,145.21