Finding the Fourth Proportional to 12,002.32, 17,987.82 and 6,449.23

Step by Step Solution

1. Step 1: Write the proportion equation
   12,002.32 : 17,987.82 = 6,449.23 : x
2. Step 2: Convert to fraction form
   12,002.32/17,987.82 = 6,449.23/x
3. Step 3: Cross multiply
   12,002.32x = 17,987.82 × 6,449.23
4. Step 4: Simplify right side
   12,002.32x = 116,007,588.38
5. Step 5: Solve for x
   x = 116,007,588.38/12,002.32
6. Step 6: Final answer
   x = 9,665.43