Finding the Fourth Proportional to 9,973.25, 13,759.23 and 5,722.78

Step by Step Solution

1. Step 1: Write the proportion equation
   9,973.25 : 13,759.23 = 5,722.78 : x
2. Step 2: Convert to fraction form
   9,973.25/13,759.23 = 5,722.78/x
3. Step 3: Cross multiply
   9,973.25x = 13,759.23 × 5,722.78
4. Step 4: Simplify right side
   9,973.25x = 78,740,996.28
5. Step 5: Solve for x
   x = 78,740,996.28/9,973.25
6. Step 6: Final answer
   x = 7,895.22