Finding the Fourth Proportional to 14,196.45, 21,261.86 and 13,704.38

Step by Step Solution

1. Step 1: Write the proportion equation
   14,196.45 : 21,261.86 = 13,704.38 : x
2. Step 2: Convert to fraction form
   14,196.45/21,261.86 = 13,704.38/x
3. Step 3: Cross multiply
   14,196.45x = 21,261.86 × 13,704.38
4. Step 4: Simplify right side
   14,196.45x = 291,380,434.12
5. Step 5: Solve for x
   x = 291,380,434.12/14,196.45
6. Step 6: Final answer
   x = 20,524.88