Finding the Fourth Proportional to 16,987.86, 23,443.13 and 9,434.23

Step by Step Solution

1. Step 1: Write the proportion equation
   16,987.86 : 23,443.13 = 9,434.23 : x
2. Step 2: Convert to fraction form
   16,987.86/23,443.13 = 9,434.23/x
3. Step 3: Cross multiply
   16,987.86x = 23,443.13 × 9,434.23
4. Step 4: Simplify right side
   16,987.86x = 221,167,880.34
5. Step 5: Solve for x
   x = 221,167,880.34/16,987.86
6. Step 6: Final answer
   x = 13,019.17