Finding the Fourth Proportional to 14,209.98, 19,611.55 and 8,162.12

Step by Step Solution

1. Step 1: Write the proportion equation
   14,209.98 : 19,611.55 = 8,162.12 : x
2. Step 2: Convert to fraction form
   14,209.98/19,611.55 = 8,162.12/x
3. Step 3: Cross multiply
   14,209.98x = 19,611.55 × 8,162.12
4. Step 4: Simplify right side
   14,209.98x = 160,071,773.40
5. Step 5: Solve for x
   x = 160,071,773.40/14,209.98
6. Step 6: Final answer
   x = 11,264.74