Finding the Fourth Proportional to 22,890.08, 31,590.96 and 13,942.82

Step by Step Solution

1. Step 1: Write the proportion equation
   22,890.08 : 31,590.96 = 13,942.82 : x
2. Step 2: Convert to fraction form
   22,890.08/31,590.96 = 13,942.82/x
3. Step 3: Cross multiply
   22,890.08x = 31,590.96 × 13,942.82
4. Step 4: Simplify right side
   22,890.08x = 440,467,068.91
5. Step 5: Solve for x
   x = 440,467,068.91/22,890.08
6. Step 6: Final answer
   x = 19,242.71