Finding the Fourth Proportional to 21,097.18, 29,114.06 and 12,141.42

Step by Step Solution

1. Step 1: Write the proportion equation
   21,097.18 : 29,114.06 = 12,141.42 : x
2. Step 2: Convert to fraction form
   21,097.18/29,114.06 = 12,141.42/x
3. Step 3: Cross multiply
   21,097.18x = 29,114.06 × 12,141.42
4. Step 4: Simplify right side
   21,097.18x = 353,486,030.37
5. Step 5: Solve for x
   x = 353,486,030.37/21,097.18
6. Step 6: Final answer
   x = 16,755.13