Finding the Fourth Proportional to 9,931.56, 13,704.03 and 5,739

Step by Step Solution

1. Step 1: Write the proportion equation
   9,931.56 : 13,704.03 = 5,739 : x
2. Step 2: Convert to fraction form
   9,931.56/13,704.03 = 5,739/x
3. Step 3: Cross multiply
   9,931.56x = 13,704.03 × 5,739
4. Step 4: Simplify right side
   9,931.56x = 78,647,428.17
5. Step 5: Solve for x
   x = 78,647,428.17/9,931.56
6. Step 6: Final answer
   x = 7,918.94