Finding the Fourth Proportional to 14,430.91, 21,615.12 and 7,019.83

Step by Step Solution

1. Step 1: Write the proportion equation
   14,430.91 : 21,615.12 = 7,019.83 : x
2. Step 2: Convert to fraction form
   14,430.91/21,615.12 = 7,019.83/x
3. Step 3: Cross multiply
   14,430.91x = 21,615.12 × 7,019.83
4. Step 4: Simplify right side
   14,430.91x = 151,734,467.83
5. Step 5: Solve for x
   x = 151,734,467.83/14,430.91
6. Step 6: Final answer
   x = 10,514.55