Finding the Fourth Proportional to 9,780.71, 13,500.15 and 8,016.53

Step by Step Solution

1. Step 1: Write the proportion equation
   9,780.71 : 13,500.15 = 8,016.53 : x
2. Step 2: Convert to fraction form
   9,780.71/13,500.15 = 8,016.53/x
3. Step 3: Cross multiply
   9,780.71x = 13,500.15 × 8,016.53
4. Step 4: Simplify right side
   9,780.71x = 108,224,357.48
5. Step 5: Solve for x
   x = 108,224,357.48/9,780.71
6. Step 6: Final answer
   x = 11,065.08