Finding the Fourth Proportional to 7,174.29, 9,897.83 and 5,290.37

Step by Step Solution

1. Step 1: Write the proportion equation
   7,174.29 : 9,897.83 = 5,290.37 : x
2. Step 2: Convert to fraction form
   7,174.29/9,897.83 = 5,290.37/x
3. Step 3: Cross multiply
   7,174.29x = 9,897.83 × 5,290.37
4. Step 4: Simplify right side
   7,174.29x = 52,363,181.19
5. Step 5: Solve for x
   x = 52,363,181.19/7,174.29
6. Step 6: Final answer
   x = 7,298.73