Finding the Fourth Proportional to 14,073.71, 19,421.72 and 8,105.25

Step by Step Solution

1. Step 1: Write the proportion equation
   14,073.71 : 19,421.72 = 8,105.25 : x
2. Step 2: Convert to fraction form
   14,073.71/19,421.72 = 8,105.25/x
3. Step 3: Cross multiply
   14,073.71x = 19,421.72 × 8,105.25
4. Step 4: Simplify right side
   14,073.71x = 157,417,855.50
5. Step 5: Solve for x
   x = 157,417,855.50/14,073.71
6. Step 6: Final answer
   x = 11,185.25