Finding the Fourth Proportional to 14,067.60, 21,085.49 and 4,705.42

Step by Step Solution

1. Step 1: Write the proportion equation
   14,067.60 : 21,085.49 = 4,705.42 : x
2. Step 2: Convert to fraction form
   14,067.60/21,085.49 = 4,705.42/x
3. Step 3: Cross multiply
   14,067.60x = 21,085.49 × 4,705.42
4. Step 4: Simplify right side
   14,067.60x = 99,216,012.40
5. Step 5: Solve for x
   x = 99,216,012.40/14,067.60
6. Step 6: Final answer
   x = 7,052.80