Finding the Fourth Proportional to 7,061.55, 9,744.80 and 3,917.67

Step by Step Solution

1. Step 1: Write the proportion equation
   7,061.55 : 9,744.80 = 3,917.67 : x
2. Step 2: Convert to fraction form
   7,061.55/9,744.80 = 3,917.67/x
3. Step 3: Cross multiply
   7,061.55x = 9,744.80 × 3,917.67
4. Step 4: Simplify right side
   7,061.55x = 38,176,871.69
5. Step 5: Solve for x
   x = 38,176,871.69/7,061.55
6. Step 6: Final answer
   x = 5,406.31