Finding the Fourth Proportional to 55,723.56, 83,585.06 and 19,726.72

Step by Step Solution

1. Step 1: Write the proportion equation
   55,723.56 : 83,585.06 = 19,726.72 : x
2. Step 2: Convert to fraction form
   55,723.56/83,585.06 = 19,726.72/x
3. Step 3: Cross multiply
   55,723.56x = 83,585.06 × 19,726.72
4. Step 4: Simplify right side
   55,723.56x = 1,648,859,074.80
5. Step 5: Solve for x
   x = 1,648,859,074.80/55,723.56
6. Step 6: Final answer
   x = 29,589.98