Finding the Fourth Proportional to 22,647.35, 31,256.22 and 13,694.91

Step by Step Solution

1. Step 1: Write the proportion equation
   22,647.35 : 31,256.22 = 13,694.91 : x
2. Step 2: Convert to fraction form
   22,647.35/31,256.22 = 13,694.91/x
3. Step 3: Cross multiply
   22,647.35x = 31,256.22 × 13,694.91
4. Step 4: Simplify right side
   22,647.35x = 428,051,051.37
5. Step 5: Solve for x
   x = 428,051,051.37/22,647.35
6. Step 6: Final answer
   x = 18,900.72