Finding the Fourth Proportional to 7,433.52, 11,128.56 and 3,915.12

Step by Step Solution

1. Step 1: Write the proportion equation
   7,433.52 : 11,128.56 = 3,915.12 : x
2. Step 2: Convert to fraction form
   7,433.52/11,128.56 = 3,915.12/x
3. Step 3: Cross multiply
   7,433.52x = 11,128.56 × 3,915.12
4. Step 4: Simplify right side
   7,433.52x = 43,569,647.83
5. Step 5: Solve for x
   x = 43,569,647.83/7,433.52
6. Step 6: Final answer
   x = 5,861.24