Finding the Fourth Proportional to 14,672.34, 21,955.94 and 12,704.76

Step by Step Solution

1. Step 1: Write the proportion equation
   14,672.34 : 21,955.94 = 12,704.76 : x
2. Step 2: Convert to fraction form
   14,672.34/21,955.94 = 12,704.76/x
3. Step 3: Cross multiply
   14,672.34x = 21,955.94 × 12,704.76
4. Step 4: Simplify right side
   14,672.34x = 278,944,948.27
5. Step 5: Solve for x
   x = 278,944,948.27/14,672.34
6. Step 6: Final answer
   x = 19,011.62