Finding the Fourth Proportional to 13,816.27, 19,064.31 and 7,765.33

Step by Step Solution

1. Step 1: Write the proportion equation
   13,816.27 : 19,064.31 = 7,765.33 : x
2. Step 2: Convert to fraction form
   13,816.27/19,064.31 = 7,765.33/x
3. Step 3: Cross multiply
   13,816.27x = 19,064.31 × 7,765.33
4. Step 4: Simplify right side
   13,816.27x = 148,040,658.37
5. Step 5: Solve for x
   x = 148,040,658.37/13,816.27
6. Step 6: Final answer
   x = 10,714.95