Finding the Fourth Proportional to 35,642.31, 49,185.87 and 19,726.43

Step by Step Solution

1. Step 1: Write the proportion equation
   35,642.31 : 49,185.87 = 19,726.43 : x
2. Step 2: Convert to fraction form
   35,642.31/49,185.87 = 19,726.43/x
3. Step 3: Cross multiply
   35,642.31x = 49,185.87 × 19,726.43
4. Step 4: Simplify right side
   35,642.31x = 970,261,375.61
5. Step 5: Solve for x
   x = 970,261,375.61/35,642.31
6. Step 6: Final answer
   x = 27,222.18