Finding the Fourth Proportional to 22,698.21, 31,326.29 and 13,745.48

Step by Step Solution

1. Step 1: Write the proportion equation
   22,698.21 : 31,326.29 = 13,745.48 : x
2. Step 2: Convert to fraction form
   22,698.21/31,326.29 = 13,745.48/x
3. Step 3: Cross multiply
   22,698.21x = 31,326.29 × 13,745.48
4. Step 4: Simplify right side
   22,698.21x = 430,594,667.31
5. Step 5: Solve for x
   x = 430,594,667.31/22,698.21
6. Step 6: Final answer
   x = 18,970.42