Finding the Fourth Proportional to 7,808.31, 10,775.50 and 4,271.72

Step by Step Solution

1. Step 1: Write the proportion equation
   7,808.31 : 10,775.50 = 4,271.72 : x
2. Step 2: Convert to fraction form
   7,808.31/10,775.50 = 4,271.72/x
3. Step 3: Cross multiply
   7,808.31x = 10,775.50 × 4,271.72
4. Step 4: Simplify right side
   7,808.31x = 46,029,854.30
5. Step 5: Solve for x
   x = 46,029,854.30/7,808.31
6. Step 6: Final answer
   x = 5,894.98