Finding the Fourth Proportional to 16,701.15, 23,031.69 and 9,985.69

Step by Step Solution

1. Step 1: Write the proportion equation
   16,701.15 : 23,031.69 = 9,985.69 : x
2. Step 2: Convert to fraction form
   16,701.15/23,031.69 = 9,985.69/x
3. Step 3: Cross multiply
   16,701.15x = 23,031.69 × 9,985.69
4. Step 4: Simplify right side
   16,701.15x = 229,987,307.86
5. Step 5: Solve for x
   x = 229,987,307.86/16,701.15
6. Step 6: Final answer
   x = 13,770.74