Finding the Fourth Proportional to 9,035.13, 12,470.04 and 5,679.30

Step by Step Solution

1. Step 1: Write the proportion equation
   9,035.13 : 12,470.04 = 5,679.30 : x
2. Step 2: Convert to fraction form
   9,035.13/12,470.04 = 5,679.30/x
3. Step 3: Cross multiply
   9,035.13x = 12,470.04 × 5,679.30
4. Step 4: Simplify right side
   9,035.13x = 70,821,098.17
5. Step 5: Solve for x
   x = 70,821,098.17/9,035.13
6. Step 6: Final answer
   x = 7,838.41