Finding the Fourth Proportional to 7,709.40, 10,632.78 and 5,585.22

Step by Step Solution

1. Step 1: Write the proportion equation
   7,709.40 : 10,632.78 = 5,585.22 : x
2. Step 2: Convert to fraction form
   7,709.40/10,632.78 = 5,585.22/x
3. Step 3: Cross multiply
   7,709.40x = 10,632.78 × 5,585.22
4. Step 4: Simplify right side
   7,709.40x = 59,386,415.51
5. Step 5: Solve for x
   x = 59,386,415.51/7,709.40
6. Step 6: Final answer
   x = 7,703.12