Finding the Fourth Proportional to 9,958.86, 13,744.02 and 5,710.31

Step by Step Solution

1. Step 1: Write the proportion equation
   9,958.86 : 13,744.02 = 5,710.31 : x
2. Step 2: Convert to fraction form
   9,958.86/13,744.02 = 5,710.31/x
3. Step 3: Cross multiply
   9,958.86x = 13,744.02 × 5,710.31
4. Step 4: Simplify right side
   9,958.86x = 78,482,654.91
5. Step 5: Solve for x
   x = 78,482,654.91/9,958.86
6. Step 6: Final answer
   x = 7,880.69