Finding the Fourth Proportional to 16,987.32, 23,438.72 and 10,272.80

Step by Step Solution

1. Step 1: Write the proportion equation
   16,987.32 : 23,438.72 = 10,272.80 : x
2. Step 2: Convert to fraction form
   16,987.32/23,438.72 = 10,272.80/x
3. Step 3: Cross multiply
   16,987.32x = 23,438.72 × 10,272.80
4. Step 4: Simplify right side
   16,987.32x = 240,781,290.05
5. Step 5: Solve for x
   x = 240,781,290.05/16,987.32
6. Step 6: Final answer
   x = 14,174.18