Finding the Fourth Proportional to 9,965.01, 13,751.81 and 5,488.92

Step by Step Solution

1. Step 1: Write the proportion equation
   9,965.01 : 13,751.81 = 5,488.92 : x
2. Step 2: Convert to fraction form
   9,965.01/13,751.81 = 5,488.92/x
3. Step 3: Cross multiply
   9,965.01x = 13,751.81 × 5,488.92
4. Step 4: Simplify right side
   9,965.01x = 75,482,584.95
5. Step 5: Solve for x
   x = 75,482,584.95/9,965.01
6. Step 6: Final answer
   x = 7,574.76