Finding the Fourth Proportional to 16,764.51, 23,134.12 and 9,211.86

Step by Step Solution

1. Step 1: Write the proportion equation
   16,764.51 : 23,134.12 = 9,211.86 : x
2. Step 2: Convert to fraction form
   16,764.51/23,134.12 = 9,211.86/x
3. Step 3: Cross multiply
   16,764.51x = 23,134.12 × 9,211.86
4. Step 4: Simplify right side
   16,764.51x = 213,108,274.66
5. Step 5: Solve for x
   x = 213,108,274.66/16,764.51
6. Step 6: Final answer
   x = 12,711.87