Finding the Fourth Proportional to 9,958.59, 13,742.30 and 5,481.62

Step by Step Solution

1. Step 1: Write the proportion equation
   9,958.59 : 13,742.30 = 5,481.62 : x
2. Step 2: Convert to fraction form
   9,958.59/13,742.30 = 5,481.62/x
3. Step 3: Cross multiply
   9,958.59x = 13,742.30 × 5,481.62
4. Step 4: Simplify right side
   9,958.59x = 75,330,011.52
5. Step 5: Solve for x
   x = 75,330,011.52/9,958.59
6. Step 6: Final answer
   x = 7,564.33