Finding the Fourth Proportional to 11,150.50, 16,719.69 and 4,903.20

Step by Step Solution

1. Step 1: Write the proportion equation
   11,150.50 : 16,719.69 = 4,903.20 : x
2. Step 2: Convert to fraction form
   11,150.50/16,719.69 = 4,903.20/x
3. Step 3: Cross multiply
   11,150.50x = 16,719.69 × 4,903.20
4. Step 4: Simplify right side
   11,150.50x = 81,979,984.01
5. Step 5: Solve for x
   x = 81,979,984.01/11,150.50
6. Step 6: Final answer
   x = 7,352.14