Finding the Fourth Proportional to 9,711.32, 13,397.82 and 5,978.84

Step by Step Solution

1. Step 1: Write the proportion equation
   9,711.32 : 13,397.82 = 5,978.84 : x
2. Step 2: Convert to fraction form
   9,711.32/13,397.82 = 5,978.84/x
3. Step 3: Cross multiply
   9,711.32x = 13,397.82 × 5,978.84
4. Step 4: Simplify right side
   9,711.32x = 80,103,422.13
5. Step 5: Solve for x
   x = 80,103,422.13/9,711.32
6. Step 6: Final answer
   x = 8,248.46