Finding the Fourth Proportional to 21,098.72, 29,086.18 and 14,375.72

Step by Step Solution

1. Step 1: Write the proportion equation
   21,098.72 : 29,086.18 = 14,375.72 : x
2. Step 2: Convert to fraction form
   21,098.72/29,086.18 = 14,375.72/x
3. Step 3: Cross multiply
   21,098.72x = 29,086.18 × 14,375.72
4. Step 4: Simplify right side
   21,098.72x = 418,134,816.33
5. Step 5: Solve for x
   x = 418,134,816.33/21,098.72
6. Step 6: Final answer
   x = 19,818.02