Finding the Fourth Proportional to 9,011.22, 12,433.68 and 5,031.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,011.22 : 12,433.68 = 5,031.72 : x
2. Step 2: Convert to fraction form
   9,011.22/12,433.68 = 5,031.72/x
3. Step 3: Cross multiply
   9,011.22x = 12,433.68 × 5,031.72
4. Step 4: Simplify right side
   9,011.22x = 62,562,796.33
5. Step 5: Solve for x
   x = 62,562,796.33/9,011.22
6. Step 6: Final answer
   x = 6,942.77