Finding the Fourth Proportional to 11,915.28, 16,446.27 and 7,436.31

Step by Step Solution

1. Step 1: Write the proportion equation
   11,915.28 : 16,446.27 = 7,436.31 : x
2. Step 2: Convert to fraction form
   11,915.28/16,446.27 = 7,436.31/x
3. Step 3: Cross multiply
   11,915.28x = 16,446.27 × 7,436.31
4. Step 4: Simplify right side
   11,915.28x = 122,299,562.06
5. Step 5: Solve for x
   x = 122,299,562.06/11,915.28
6. Step 6: Final answer
   x = 10,264.09