Finding the Fourth Proportional to 14,016.43, 19,342.53 and 7,643.01

Step by Step Solution

1. Step 1: Write the proportion equation
   14,016.43 : 19,342.53 = 7,643.01 : x
2. Step 2: Convert to fraction form
   14,016.43/19,342.53 = 7,643.01/x
3. Step 3: Cross multiply
   14,016.43x = 19,342.53 × 7,643.01
4. Step 4: Simplify right side
   14,016.43x = 147,835,113.95
5. Step 5: Solve for x
   x = 147,835,113.95/14,016.43
6. Step 6: Final answer
   x = 10,547.27