Finding the Fourth Proportional to 7,061.16, 9,744.58 and 3,917.40

Step by Step Solution

1. Step 1: Write the proportion equation
   7,061.16 : 9,744.58 = 3,917.40 : x
2. Step 2: Convert to fraction form
   7,061.16/9,744.58 = 3,917.40/x
3. Step 3: Cross multiply
   7,061.16x = 9,744.58 × 3,917.40
4. Step 4: Simplify right side
   7,061.16x = 38,173,417.69
5. Step 5: Solve for x
   x = 38,173,417.69/7,061.16
6. Step 6: Final answer
   x = 5,406.11