Finding the Fourth Proportional to 9,931.02, 13,704.30 and 5,739

Step by Step Solution

1. Step 1: Write the proportion equation
   9,931.02 : 13,704.30 = 5,739 : x
2. Step 2: Convert to fraction form
   9,931.02/13,704.30 = 5,739/x
3. Step 3: Cross multiply
   9,931.02x = 13,704.30 × 5,739
4. Step 4: Simplify right side
   9,931.02x = 78,648,977.70
5. Step 5: Solve for x
   x = 78,648,977.70/9,931.02
6. Step 6: Final answer
   x = 7,919.53