Finding the Fourth Proportional to 10,936.32, 16,406.10 and 3,915.24

Step by Step Solution

1. Step 1: Write the proportion equation
   10,936.32 : 16,406.10 = 3,915.24 : x
2. Step 2: Convert to fraction form
   10,936.32/16,406.10 = 3,915.24/x
3. Step 3: Cross multiply
   10,936.32x = 16,406.10 × 3,915.24
4. Step 4: Simplify right side
   10,936.32x = 64,233,818.96
5. Step 5: Solve for x
   x = 64,233,818.96/10,936.32
6. Step 6: Final answer
   x = 5,873.44