Finding the Fourth Proportional to 7,031.34, 10,553.22 and 5,481.30

Step by Step Solution

1. Step 1: Write the proportion equation
   7,031.34 : 10,553.22 = 5,481.30 : x
2. Step 2: Convert to fraction form
   7,031.34/10,553.22 = 5,481.30/x
3. Step 3: Cross multiply
   7,031.34x = 10,553.22 × 5,481.30
4. Step 4: Simplify right side
   7,031.34x = 57,845,364.79
5. Step 5: Solve for x
   x = 57,845,364.79/7,031.34
6. Step 6: Final answer
   x = 8,226.79