Finding the Fourth Proportional to 7,337.61, 10,111.90 and 5,238.09

Step by Step Solution

1. Step 1: Write the proportion equation
   7,337.61 : 10,111.90 = 5,238.09 : x
2. Step 2: Convert to fraction form
   7,337.61/10,111.90 = 5,238.09/x
3. Step 3: Cross multiply
   7,337.61x = 10,111.90 × 5,238.09
4. Step 4: Simplify right side
   7,337.61x = 52,967,042.27
5. Step 5: Solve for x
   x = 52,967,042.27/7,337.61
6. Step 6: Final answer
   x = 7,218.57