Finding the Fourth Proportional to 7,760.36, 11,575.42 and 7,123.52

Step by Step Solution

1. Step 1: Write the proportion equation
   7,760.36 : 11,575.42 = 7,123.52 : x
2. Step 2: Convert to fraction form
   7,760.36/11,575.42 = 7,123.52/x
3. Step 3: Cross multiply
   7,760.36x = 11,575.42 × 7,123.52
4. Step 4: Simplify right side
   7,760.36x = 82,457,735.88
5. Step 5: Solve for x
   x = 82,457,735.88/7,760.36
6. Step 6: Final answer
   x = 10,625.50