Finding the Fourth Proportional to 9,064.61, 12,508.96 and 5,031.20

Step by Step Solution

1. Step 1: Write the proportion equation
   9,064.61 : 12,508.96 = 5,031.20 : x
2. Step 2: Convert to fraction form
   9,064.61/12,508.96 = 5,031.20/x
3. Step 3: Cross multiply
   9,064.61x = 12,508.96 × 5,031.20
4. Step 4: Simplify right side
   9,064.61x = 62,935,004.43
5. Step 5: Solve for x
   x = 62,935,004.43/9,064.61
6. Step 6: Final answer
   x = 6,942.94