Finding the Fourth Proportional to 11,964.53, 17,945.42 and 3,200.15

Step by Step Solution

1. Step 1: Write the proportion equation
   11,964.53 : 17,945.42 = 3,200.15 : x
2. Step 2: Convert to fraction form
   11,964.53/17,945.42 = 3,200.15/x
3. Step 3: Cross multiply
   11,964.53x = 17,945.42 × 3,200.15
4. Step 4: Simplify right side
   11,964.53x = 57,427,930.09
5. Step 5: Solve for x
   x = 57,427,930.09/11,964.53
6. Step 6: Final answer
   x = 4,799.85