Finding the Fourth Proportional to 9,016.84, 12,430.69 and 7,771.15

Step by Step Solution

1. Step 1: Write the proportion equation
   9,016.84 : 12,430.69 = 7,771.15 : x
2. Step 2: Convert to fraction form
   9,016.84/12,430.69 = 7,771.15/x
3. Step 3: Cross multiply
   9,016.84x = 12,430.69 × 7,771.15
4. Step 4: Simplify right side
   9,016.84x = 96,600,756.59
5. Step 5: Solve for x
   x = 96,600,756.59/9,016.84
6. Step 6: Final answer
   x = 10,713.37