Finding the Fourth Proportional to 9,973.59, 13,763.70 and 5,497.28

Step by Step Solution

1. Step 1: Write the proportion equation
   9,973.59 : 13,763.70 = 5,497.28 : x
2. Step 2: Convert to fraction form
   9,973.59/13,763.70 = 5,497.28/x
3. Step 3: Cross multiply
   9,973.59x = 13,763.70 × 5,497.28
4. Step 4: Simplify right side
   9,973.59x = 75,662,947.15
5. Step 5: Solve for x
   x = 75,662,947.15/9,973.59
6. Step 6: Final answer
   x = 7,586.33