Finding the Fourth Proportional to 9,439.47, 13,031.47 and 5,903.82

Step by Step Solution

1. Step 1: Write the proportion equation
   9,439.47 : 13,031.47 = 5,903.82 : x
2. Step 2: Convert to fraction form
   9,439.47/13,031.47 = 5,903.82/x
3. Step 3: Cross multiply
   9,439.47x = 13,031.47 × 5,903.82
4. Step 4: Simplify right side
   9,439.47x = 76,935,453.22
5. Step 5: Solve for x
   x = 76,935,453.22/9,439.47
6. Step 6: Final answer
   x = 8,150.40