Finding the Fourth Proportional to 14,131.50, 19,498.21 and 8,465.19

Step by Step Solution

1. Step 1: Write the proportion equation
   14,131.50 : 19,498.21 = 8,465.19 : x
2. Step 2: Convert to fraction form
   14,131.50/19,498.21 = 8,465.19/x
3. Step 3: Cross multiply
   14,131.50x = 19,498.21 × 8,465.19
4. Step 4: Simplify right side
   14,131.50x = 165,056,031.15
5. Step 5: Solve for x
   x = 165,056,031.15/14,131.50
6. Step 6: Final answer
   x = 11,680.01