Finding the Fourth Proportional to 14,704.86, 20,292.72 and 7,990.56

Step by Step Solution

1. Step 1: Write the proportion equation
   14,704.86 : 20,292.72 = 7,990.56 : x
2. Step 2: Convert to fraction form
   14,704.86/20,292.72 = 7,990.56/x
3. Step 3: Cross multiply
   14,704.86x = 20,292.72 × 7,990.56
4. Step 4: Simplify right side
   14,704.86x = 162,150,196.72
5. Step 5: Solve for x
   x = 162,150,196.72/14,704.86
6. Step 6: Final answer
   x = 11,026.98