Finding the Fourth Proportional to 9,704.72, 13,394.76 and 5,978

Step by Step Solution

1. Step 1: Write the proportion equation
   9,704.72 : 13,394.76 = 5,978 : x
2. Step 2: Convert to fraction form
   9,704.72/13,394.76 = 5,978/x
3. Step 3: Cross multiply
   9,704.72x = 13,394.76 × 5,978
4. Step 4: Simplify right side
   9,704.72x = 80,073,875.28
5. Step 5: Solve for x
   x = 80,073,875.28/9,704.72
6. Step 6: Final answer
   x = 8,251.02