Finding the Fourth Proportional to 5,404.59, 7,459.31 and 3,137.38

Step by Step Solution

1. Step 1: Write the proportion equation
   5,404.59 : 7,459.31 = 3,137.38 : x
2. Step 2: Convert to fraction form
   5,404.59/7,459.31 = 3,137.38/x
3. Step 3: Cross multiply
   5,404.59x = 7,459.31 × 3,137.38
4. Step 4: Simplify right side
   5,404.59x = 23,402,679.20
5. Step 5: Solve for x
   x = 23,402,679.20/5,404.59
6. Step 6: Final answer
   x = 4,330.15