Finding the Fourth Proportional to 4,700.72, 6,484.88 and 3,106.96

Step by Step Solution

1. Step 1: Write the proportion equation
   4,700.72 : 6,484.88 = 3,106.96 : x
2. Step 2: Convert to fraction form
   4,700.72/6,484.88 = 3,106.96/x
3. Step 3: Cross multiply
   4,700.72x = 6,484.88 × 3,106.96
4. Step 4: Simplify right side
   4,700.72x = 20,148,262.76
5. Step 5: Solve for x
   x = 20,148,262.76/4,700.72
6. Step 6: Final answer
   x = 4,286.21