Finding the Fourth Proportional to 9,971.82, 13,760.74 and 5,719.96

Step by Step Solution

1. Step 1: Write the proportion equation
   9,971.82 : 13,760.74 = 5,719.96 : x
2. Step 2: Convert to fraction form
   9,971.82/13,760.74 = 5,719.96/x
3. Step 3: Cross multiply
   9,971.82x = 13,760.74 × 5,719.96
4. Step 4: Simplify right side
   9,971.82x = 78,710,882.37
5. Step 5: Solve for x
   x = 78,710,882.37/9,971.82
6. Step 6: Final answer
   x = 7,893.33