Finding the Fourth Proportional to 6,969.47, 9,618.17 and 3,984.50

Step by Step Solution

1. Step 1: Write the proportion equation
   6,969.47 : 9,618.17 = 3,984.50 : x
2. Step 2: Convert to fraction form
   6,969.47/9,618.17 = 3,984.50/x
3. Step 3: Cross multiply
   6,969.47x = 9,618.17 × 3,984.50
4. Step 4: Simplify right side
   6,969.47x = 38,323,530.35
5. Step 5: Solve for x
   x = 38,323,530.35/6,969.47
6. Step 6: Final answer
   x = 5,498.78