Finding the Fourth Proportional to 9,958.23, 13,743.61 and 5,709.98

Step by Step Solution

1. Step 1: Write the proportion equation
   9,958.23 : 13,743.61 = 5,709.98 : x
2. Step 2: Convert to fraction form
   9,958.23/13,743.61 = 5,709.98/x
3. Step 3: Cross multiply
   9,958.23x = 13,743.61 × 5,709.98
4. Step 4: Simplify right side
   9,958.23x = 78,475,758.31
5. Step 5: Solve for x
   x = 78,475,758.31/9,958.23
6. Step 6: Final answer
   x = 7,880.49