Finding the Fourth Proportional to 9,311.31, 13,957.61 and 4,624.11

Step by Step Solution

1. Step 1: Write the proportion equation
   9,311.31 : 13,957.61 = 4,624.11 : x
2. Step 2: Convert to fraction form
   9,311.31/13,957.61 = 4,624.11/x
3. Step 3: Cross multiply
   9,311.31x = 13,957.61 × 4,624.11
4. Step 4: Simplify right side
   9,311.31x = 64,541,500.86
5. Step 5: Solve for x
   x = 64,541,500.86/9,311.31
6. Step 6: Final answer
   x = 6,931.52