Finding the Fourth Proportional to 6,397.76, 9,605.61 and 3,280.01

Step by Step Solution

1. Step 1: Write the proportion equation
   6,397.76 : 9,605.61 = 3,280.01 : x
2. Step 2: Convert to fraction form
   6,397.76/9,605.61 = 3,280.01/x
3. Step 3: Cross multiply
   6,397.76x = 9,605.61 × 3,280.01
4. Step 4: Simplify right side
   6,397.76x = 31,506,448.83
5. Step 5: Solve for x
   x = 31,506,448.83/6,397.76
6. Step 6: Final answer
   x = 4,924.61