Finding the Fourth Proportional to 6,311.25, 8,709.71 and 3,516.93

Step by Step Solution

1. Step 1: Write the proportion equation
   6,311.25 : 8,709.71 = 3,516.93 : x
2. Step 2: Convert to fraction form
   6,311.25/8,709.71 = 3,516.93/x
3. Step 3: Cross multiply
   6,311.25x = 8,709.71 × 3,516.93
4. Step 4: Simplify right side
   6,311.25x = 30,631,422.81
5. Step 5: Solve for x
   x = 30,631,422.81/6,311.25
6. Step 6: Final answer
   x = 4,853.46