Finding the Fourth Proportional to 11,631.31, 17,444.38 and 3,311.17

Step by Step Solution

1. Step 1: Write the proportion equation
   11,631.31 : 17,444.38 = 3,311.17 : x
2. Step 2: Convert to fraction form
   11,631.31/17,444.38 = 3,311.17/x
3. Step 3: Cross multiply
   11,631.31x = 17,444.38 × 3,311.17
4. Step 4: Simplify right side
   11,631.31x = 57,761,299.45
5. Step 5: Solve for x
   x = 57,761,299.45/11,631.31
6. Step 6: Final answer
   x = 4,966.02