Finding the Fourth Proportional to 14,279.25, 19,704.64 and 7,818.72

Step by Step Solution

1. Step 1: Write the proportion equation
   14,279.25 : 19,704.64 = 7,818.72 : x
2. Step 2: Convert to fraction form
   14,279.25/19,704.64 = 7,818.72/x
3. Step 3: Cross multiply
   14,279.25x = 19,704.64 × 7,818.72
4. Step 4: Simplify right side
   14,279.25x = 154,065,062.86
5. Step 5: Solve for x
   x = 154,065,062.86/14,279.25
6. Step 6: Final answer
   x = 10,789.44