Finding the Fourth Proportional to 5,123.31, 7,070.31 and 3,133.83

Step by Step Solution

1. Step 1: Write the proportion equation
   5,123.31 : 7,070.31 = 3,133.83 : x
2. Step 2: Convert to fraction form
   5,123.31/7,070.31 = 3,133.83/x
3. Step 3: Cross multiply
   5,123.31x = 7,070.31 × 3,133.83
4. Step 4: Simplify right side
   5,123.31x = 22,157,149.59
5. Step 5: Solve for x
   x = 22,157,149.59/5,123.31
6. Step 6: Final answer
   x = 4,324.77