Finding the Fourth Proportional to 7,061.10, 9,744.30 and 3,917.40

Step by Step Solution

1. Step 1: Write the proportion equation
   7,061.10 : 9,744.30 = 3,917.40 : x
2. Step 2: Convert to fraction form
   7,061.10/9,744.30 = 3,917.40/x
3. Step 3: Cross multiply
   7,061.10x = 9,744.30 × 3,917.40
4. Step 4: Simplify right side
   7,061.10x = 38,172,320.82
5. Step 5: Solve for x
   x = 38,172,320.82/7,061.10
6. Step 6: Final answer
   x = 5,406.00