Finding the Fourth Proportional to 14,322.40, 19,765.05 and 8,272.19

Step by Step Solution

1. Step 1: Write the proportion equation
   14,322.40 : 19,765.05 = 8,272.19 : x
2. Step 2: Convert to fraction form
   14,322.40/19,765.05 = 8,272.19/x
3. Step 3: Cross multiply
   14,322.40x = 19,765.05 × 8,272.19
4. Step 4: Simplify right side
   14,322.40x = 163,500,248.96
5. Step 5: Solve for x
   x = 163,500,248.96/14,322.40
6. Step 6: Final answer
   x = 11,415.70