Finding the Fourth Proportional to 21,196.58, 29,238.54 and 14,026.64

Step by Step Solution

1. Step 1: Write the proportion equation
   21,196.58 : 29,238.54 = 14,026.64 : x
2. Step 2: Convert to fraction form
   21,196.58/29,238.54 = 14,026.64/x
3. Step 3: Cross multiply
   21,196.58x = 29,238.54 × 14,026.64
4. Step 4: Simplify right side
   21,196.58x = 410,118,474.71
5. Step 5: Solve for x
   x = 410,118,474.71/21,196.58
6. Step 6: Final answer
   x = 19,348.33