Finding the Fourth Proportional to 4,722.06, 6,521.88 and 3,147.42

Step by Step Solution

1. Step 1: Write the proportion equation
   4,722.06 : 6,521.88 = 3,147.42 : x
2. Step 2: Convert to fraction form
   4,722.06/6,521.88 = 3,147.42/x
3. Step 3: Cross multiply
   4,722.06x = 6,521.88 × 3,147.42
4. Step 4: Simplify right side
   4,722.06x = 20,527,095.55
5. Step 5: Solve for x
   x = 20,527,095.55/4,722.06
6. Step 6: Final answer
   x = 4,347.06