Finding the Fourth Proportional to 5,103.23, 7,042.80 and 3,113.25

Step by Step Solution

1. Step 1: Write the proportion equation
   5,103.23 : 7,042.80 = 3,113.25 : x
2. Step 2: Convert to fraction form
   5,103.23/7,042.80 = 3,113.25/x
3. Step 3: Cross multiply
   5,103.23x = 7,042.80 × 3,113.25
4. Step 4: Simplify right side
   5,103.23x = 21,925,997.10
5. Step 5: Solve for x
   x = 21,925,997.10/5,103.23
6. Step 6: Final answer
   x = 4,296.50