Finding the Fourth Proportional to 7,255.02, 9,946.73 and 7,123.80

Step by Step Solution

1. Step 1: Write the proportion equation
   7,255.02 : 9,946.73 = 7,123.80 : x
2. Step 2: Convert to fraction form
   7,255.02/9,946.73 = 7,123.80/x
3. Step 3: Cross multiply
   7,255.02x = 9,946.73 × 7,123.80
4. Step 4: Simplify right side
   7,255.02x = 70,858,515.17
5. Step 5: Solve for x
   x = 70,858,515.17/7,255.02
6. Step 6: Final answer
   x = 9,766.83