Finding the Fourth Proportional to 6,969.76, 9,628.56 and 5,487.52

Step by Step Solution

1. Step 1: Write the proportion equation
   6,969.76 : 9,628.56 = 5,487.52 : x
2. Step 2: Convert to fraction form
   6,969.76/9,628.56 = 5,487.52/x
3. Step 3: Cross multiply
   6,969.76x = 9,628.56 × 5,487.52
4. Step 4: Simplify right side
   6,969.76x = 52,836,915.57
5. Step 5: Solve for x
   x = 52,836,915.57/6,969.76
6. Step 6: Final answer
   x = 7,580.88