Finding the Fourth Proportional to 9,439.72, 13,031.82 and 5,904.07

Step by Step Solution

1. Step 1: Write the proportion equation
   9,439.72 : 13,031.82 = 5,904.07 : x
2. Step 2: Convert to fraction form
   9,439.72/13,031.82 = 5,904.07/x
3. Step 3: Cross multiply
   9,439.72x = 13,031.82 × 5,904.07
4. Step 4: Simplify right side
   9,439.72x = 76,940,682.83
5. Step 5: Solve for x
   x = 76,940,682.83/9,439.72
6. Step 6: Final answer
   x = 8,150.74