Finding the Fourth Proportional to 9,836.20, 13,573.78 and 5,359.98

Step by Step Solution

1. Step 1: Write the proportion equation
   9,836.20 : 13,573.78 = 5,359.98 : x
2. Step 2: Convert to fraction form
   9,836.20/13,573.78 = 5,359.98/x
3. Step 3: Cross multiply
   9,836.20x = 13,573.78 × 5,359.98
4. Step 4: Simplify right side
   9,836.20x = 72,755,189.32
5. Step 5: Solve for x
   x = 72,755,189.32/9,836.20
6. Step 6: Final answer
   x = 7,396.68