Finding the Fourth Proportional to 10,984.76, 16,478.75 and 3,485.81

Step by Step Solution

1. Step 1: Write the proportion equation
   10,984.76 : 16,478.75 = 3,485.81 : x
2. Step 2: Convert to fraction form
   10,984.76/16,478.75 = 3,485.81/x
3. Step 3: Cross multiply
   10,984.76x = 16,478.75 × 3,485.81
4. Step 4: Simplify right side
   10,984.76x = 57,441,815.31
5. Step 5: Solve for x
   x = 57,441,815.31/10,984.76
6. Step 6: Final answer
   x = 5,229.23