Finding the Fourth Proportional to 14,290.18, 19,720.72 and 8,002.54

Step by Step Solution

1. Step 1: Write the proportion equation
   14,290.18 : 19,720.72 = 8,002.54 : x
2. Step 2: Convert to fraction form
   14,290.18/19,720.72 = 8,002.54/x
3. Step 3: Cross multiply
   14,290.18x = 19,720.72 × 8,002.54
4. Step 4: Simplify right side
   14,290.18x = 157,815,850.63
5. Step 5: Solve for x
   x = 157,815,850.63/14,290.18
6. Step 6: Final answer
   x = 11,043.66