Finding the Fourth Proportional to 21,654.74, 29,881.59 and 12,093.30

Step by Step Solution

1. Step 1: Write the proportion equation
   21,654.74 : 29,881.59 = 12,093.30 : x
2. Step 2: Convert to fraction form
   21,654.74/29,881.59 = 12,093.30/x
3. Step 3: Cross multiply
   21,654.74x = 29,881.59 × 12,093.30
4. Step 4: Simplify right side
   21,654.74x = 361,366,914.42
5. Step 5: Solve for x
   x = 361,366,914.42/21,654.74
6. Step 6: Final answer
   x = 16,687.66