Finding the Fourth Proportional to 14,031.72, 19,363.80 and 7,744.09

Step by Step Solution

1. Step 1: Write the proportion equation
   14,031.72 : 19,363.80 = 7,744.09 : x
2. Step 2: Convert to fraction form
   14,031.72/19,363.80 = 7,744.09/x
3. Step 3: Cross multiply
   14,031.72x = 19,363.80 × 7,744.09
4. Step 4: Simplify right side
   14,031.72x = 149,955,009.94
5. Step 5: Solve for x
   x = 149,955,009.94/14,031.72
6. Step 6: Final answer
   x = 10,686.86