Finding the Fourth Proportional to 9,836.96, 13,574.88 and 5,645.12

Step by Step Solution

1. Step 1: Write the proportion equation
   9,836.96 : 13,574.88 = 5,645.12 : x
2. Step 2: Convert to fraction form
   9,836.96/13,574.88 = 5,645.12/x
3. Step 3: Cross multiply
   9,836.96x = 13,574.88 × 5,645.12
4. Step 4: Simplify right side
   9,836.96x = 76,631,826.59
5. Step 5: Solve for x
   x = 76,631,826.59/9,836.96
6. Step 6: Final answer
   x = 7,790.19