Finding the Fourth Proportional to 22,940.91, 31,654.62 and 13,511.34

Step by Step Solution

1. Step 1: Write the proportion equation
   22,940.91 : 31,654.62 = 13,511.34 : x
2. Step 2: Convert to fraction form
   22,940.91/31,654.62 = 13,511.34/x
3. Step 3: Cross multiply
   22,940.91x = 31,654.62 × 13,511.34
4. Step 4: Simplify right side
   22,940.91x = 427,696,333.39
5. Step 5: Solve for x
   x = 427,696,333.39/22,940.91
6. Step 6: Final answer
   x = 18,643.39