Finding the Fourth Proportional to 9,850.78, 13,593.98 and 5,659.06

Step by Step Solution

1. Step 1: Write the proportion equation
   9,850.78 : 13,593.98 = 5,659.06 : x
2. Step 2: Convert to fraction form
   9,850.78/13,593.98 = 5,659.06/x
3. Step 3: Cross multiply
   9,850.78x = 13,593.98 × 5,659.06
4. Step 4: Simplify right side
   9,850.78x = 76,929,148.46
5. Step 5: Solve for x
   x = 76,929,148.46/9,850.78
6. Step 6: Final answer
   x = 7,809.45