Finding the Fourth Proportional to 10,903.68, 16,354.56 and 3,112.32

Step by Step Solution

1. Step 1: Write the proportion equation
   10,903.68 : 16,354.56 = 3,112.32 : x
2. Step 2: Convert to fraction form
   10,903.68/16,354.56 = 3,112.32/x
3. Step 3: Cross multiply
   10,903.68x = 16,354.56 × 3,112.32
4. Step 4: Simplify right side
   10,903.68x = 50,900,624.18
5. Step 5: Solve for x
   x = 50,900,624.18/10,903.68
6. Step 6: Final answer
   x = 4,668.21