Finding the Fourth Proportional to 9,828.13, 13,562.61 and 5,351.96

Step by Step Solution

1. Step 1: Write the proportion equation
   9,828.13 : 13,562.61 = 5,351.96 : x
2. Step 2: Convert to fraction form
   9,828.13/13,562.61 = 5,351.96/x
3. Step 3: Cross multiply
   9,828.13x = 13,562.61 × 5,351.96
4. Step 4: Simplify right side
   9,828.13x = 72,586,478.40
5. Step 5: Solve for x
   x = 72,586,478.40/9,828.13
6. Step 6: Final answer
   x = 7,385.59