Finding the Fourth Proportional to 9,435.80, 13,022.12 and 5,659.10

Step by Step Solution

1. Step 1: Write the proportion equation
   9,435.80 : 13,022.12 = 5,659.10 : x
2. Step 2: Convert to fraction form
   9,435.80/13,022.12 = 5,659.10/x
3. Step 3: Cross multiply
   9,435.80x = 13,022.12 × 5,659.10
4. Step 4: Simplify right side
   9,435.80x = 73,693,479.29
5. Step 5: Solve for x
   x = 73,693,479.29/9,435.80
6. Step 6: Final answer
   x = 7,809.99