Finding the Fourth Proportional to 5,153.22, 7,111.88 and 2,915.49

Step by Step Solution

1. Step 1: Write the proportion equation
   5,153.22 : 7,111.88 = 2,915.49 : x
2. Step 2: Convert to fraction form
   5,153.22/7,111.88 = 2,915.49/x
3. Step 3: Cross multiply
   5,153.22x = 7,111.88 × 2,915.49
4. Step 4: Simplify right side
   5,153.22x = 20,734,615.02
5. Step 5: Solve for x
   x = 20,734,615.02/5,153.22
6. Step 6: Final answer
   x = 4,023.62