Finding the Fourth Proportional to 11,301.94, 15,588.37 and 7,765.30

Step by Step Solution

1. Step 1: Write the proportion equation
   11,301.94 : 15,588.37 = 7,765.30 : x
2. Step 2: Convert to fraction form
   11,301.94/15,588.37 = 7,765.30/x
3. Step 3: Cross multiply
   11,301.94x = 15,588.37 × 7,765.30
4. Step 4: Simplify right side
   11,301.94x = 121,048,369.56
5. Step 5: Solve for x
   x = 121,048,369.56/11,301.94
6. Step 6: Final answer
   x = 10,710.41