Finding the Fourth Proportional to 14,785.81, 20,404.91 and 8,071.83

Step by Step Solution

1. Step 1: Write the proportion equation
   14,785.81 : 20,404.91 = 8,071.83 : x
2. Step 2: Convert to fraction form
   14,785.81/20,404.91 = 8,071.83/x
3. Step 3: Cross multiply
   14,785.81x = 20,404.91 × 8,071.83
4. Step 4: Simplify right side
   14,785.81x = 164,704,964.69
5. Step 5: Solve for x
   x = 164,704,964.69/14,785.81
6. Step 6: Final answer
   x = 11,139.39