Finding the Fourth Proportional to 5,919.94, 8,171.86 and 3,561.63

Step by Step Solution

1. Step 1: Write the proportion equation
   5,919.94 : 8,171.86 = 3,561.63 : x
2. Step 2: Convert to fraction form
   5,919.94/8,171.86 = 3,561.63/x
3. Step 3: Cross multiply
   5,919.94x = 8,171.86 × 3,561.63
4. Step 4: Simplify right side
   5,919.94x = 29,105,141.73
5. Step 5: Solve for x
   x = 29,105,141.73/5,919.94
6. Step 6: Final answer
   x = 4,916.46