Finding the Fourth Proportional to 10,915.46, 16,373.60 and 3,520.03

Step by Step Solution

1. Step 1: Write the proportion equation
   10,915.46 : 16,373.60 = 3,520.03 : x
2. Step 2: Convert to fraction form
   10,915.46/16,373.60 = 3,520.03/x
3. Step 3: Cross multiply
   10,915.46x = 16,373.60 × 3,520.03
4. Step 4: Simplify right side
   10,915.46x = 57,635,504.67
5. Step 5: Solve for x
   x = 57,635,504.67/10,915.46
6. Step 6: Final answer
   x = 5,280.17