Finding the Fourth Proportional to 4,642.20, 6,404.06 and 3,051.50

Step by Step Solution

1. Step 1: Write the proportion equation
   4,642.20 : 6,404.06 = 3,051.50 : x
2. Step 2: Convert to fraction form
   4,642.20/6,404.06 = 3,051.50/x
3. Step 3: Cross multiply
   4,642.20x = 6,404.06 × 3,051.50
4. Step 4: Simplify right side
   4,642.20x = 19,541,964.70
5. Step 5: Solve for x
   x = 19,541,964.70/4,642.20
6. Step 6: Final answer
   x = 4,209.63