Finding the Fourth Proportional to 9,840.34, 13,579.98 and 5,591.58

Step by Step Solution

1. Step 1: Write the proportion equation
   9,840.34 : 13,579.98 = 5,591.58 : x
2. Step 2: Convert to fraction form
   9,840.34/13,579.98 = 5,591.58/x
3. Step 3: Cross multiply
   9,840.34x = 13,579.98 × 5,591.58
4. Step 4: Simplify right side
   9,840.34x = 75,933,544.57
5. Step 5: Solve for x
   x = 75,933,544.57/9,840.34
6. Step 6: Final answer
   x = 7,716.56