Finding the Fourth Proportional to 13,011.62, 17,951.37 and 7,419.38

Step by Step Solution

1. Step 1: Write the proportion equation
   13,011.62 : 17,951.37 = 7,419.38 : x
2. Step 2: Convert to fraction form
   13,011.62/17,951.37 = 7,419.38/x
3. Step 3: Cross multiply
   13,011.62x = 17,951.37 × 7,419.38
4. Step 4: Simplify right side
   13,011.62x = 133,188,035.55
5. Step 5: Solve for x
   x = 133,188,035.55/13,011.62
6. Step 6: Final answer
   x = 10,236.08