Finding the Fourth Proportional to 11,375.74, 17,063.88 and 3,478.42

Step by Step Solution

1. Step 1: Write the proportion equation
   11,375.74 : 17,063.88 = 3,478.42 : x
2. Step 2: Convert to fraction form
   11,375.74/17,063.88 = 3,478.42/x
3. Step 3: Cross multiply
   11,375.74x = 17,063.88 × 3,478.42
4. Step 4: Simplify right side
   11,375.74x = 59,355,341.47
5. Step 5: Solve for x
   x = 59,355,341.47/11,375.74
6. Step 6: Final answer
   x = 5,217.71