Finding the Fourth Proportional to 8,765.89, 12,096.85 and 5,407.36

Step by Step Solution

1. Step 1: Write the proportion equation
   8,765.89 : 12,096.85 = 5,407.36 : x
2. Step 2: Convert to fraction form
   8,765.89/12,096.85 = 5,407.36/x
3. Step 3: Cross multiply
   8,765.89x = 12,096.85 × 5,407.36
4. Step 4: Simplify right side
   8,765.89x = 65,412,022.82
5. Step 5: Solve for x
   x = 65,412,022.82/8,765.89
6. Step 6: Final answer
   x = 7,462.11