Finding the Fourth Proportional to 5,176.42, 7,151.81 and 3,611.50

Step by Step Solution

1. Step 1: Write the proportion equation
   5,176.42 : 7,151.81 = 3,611.50 : x
2. Step 2: Convert to fraction form
   5,176.42/7,151.81 = 3,611.50/x
3. Step 3: Cross multiply
   5,176.42x = 7,151.81 × 3,611.50
4. Step 4: Simplify right side
   5,176.42x = 25,828,761.82
5. Step 5: Solve for x
   x = 25,828,761.82/5,176.42
6. Step 6: Final answer
   x = 4,989.70