Finding the Fourth Proportional to 30,575.52, 42,191.76 and 16,964

Step by Step Solution

1. Step 1: Write the proportion equation
   30,575.52 : 42,191.76 = 16,964 : x
2. Step 2: Convert to fraction form
   30,575.52/42,191.76 = 16,964/x
3. Step 3: Cross multiply
   30,575.52x = 42,191.76 × 16,964
4. Step 4: Simplify right side
   30,575.52x = 715,741,016.64
5. Step 5: Solve for x
   x = 715,741,016.64/30,575.52
6. Step 6: Final answer
   x = 23,408.96