Finding the Fourth Proportional to 9,971.30, 13,759.62 and 5,990.96

Step by Step Solution

1. Step 1: Write the proportion equation
   9,971.30 : 13,759.62 = 5,990.96 : x
2. Step 2: Convert to fraction form
   9,971.30/13,759.62 = 5,990.96/x
3. Step 3: Cross multiply
   9,971.30x = 13,759.62 × 5,990.96
4. Step 4: Simplify right side
   9,971.30x = 82,433,333.04
5. Step 5: Solve for x
   x = 82,433,333.04/9,971.30
6. Step 6: Final answer
   x = 8,267.06