Finding the Fourth Proportional to 36,721.25, 55,081.74 and 10,426.00

Step by Step Solution

1. Step 1: Write the proportion equation
   36,721.25 : 55,081.74 = 10,426.00 : x
2. Step 2: Convert to fraction form
   36,721.25/55,081.74 = 10,426.00/x
3. Step 3: Cross multiply
   36,721.25x = 55,081.74 × 10,426.00
4. Step 4: Simplify right side
   36,721.25x = 574,281,945.83
5. Step 5: Solve for x
   x = 574,281,945.83/36,721.25
6. Step 6: Final answer
   x = 15,638.95