Finding the Fourth Proportional to 16,642.56, 22,971.72 and 9,932.88

Step by Step Solution

1. Step 1: Write the proportion equation
   16,642.56 : 22,971.72 = 9,932.88 : x
2. Step 2: Convert to fraction form
   16,642.56/22,971.72 = 9,932.88/x
3. Step 3: Cross multiply
   16,642.56x = 22,971.72 × 9,932.88
4. Step 4: Simplify right side
   16,642.56x = 228,175,338.15
5. Step 5: Solve for x
   x = 228,175,338.15/16,642.56
6. Step 6: Final answer
   x = 13,710.35