Finding the Fourth Proportional to 9,708.91, 13,398.78 and 5,461.31

Step by Step Solution

1. Step 1: Write the proportion equation
   9,708.91 : 13,398.78 = 5,461.31 : x
2. Step 2: Convert to fraction form
   9,708.91/13,398.78 = 5,461.31/x
3. Step 3: Cross multiply
   9,708.91x = 13,398.78 × 5,461.31
4. Step 4: Simplify right side
   9,708.91x = 73,174,824.21
5. Step 5: Solve for x
   x = 73,174,824.21/9,708.91
6. Step 6: Final answer
   x = 7,536.88