Finding the Fourth Proportional to 21,419.98, 29,568.82 and 16,116.10

Step by Step Solution

1. Step 1: Write the proportion equation
   21,419.98 : 29,568.82 = 16,116.10 : x
2. Step 2: Convert to fraction form
   21,419.98/29,568.82 = 16,116.10/x
3. Step 3: Cross multiply
   21,419.98x = 29,568.82 × 16,116.10
4. Step 4: Simplify right side
   21,419.98x = 476,534,060.00
5. Step 5: Solve for x
   x = 476,534,060.00/21,419.98
6. Step 6: Final answer
   x = 22,247.18