Finding the Fourth Proportional to 13,022.67, 19,528.17 and 7,760.16

Step by Step Solution

1. Step 1: Write the proportion equation
   13,022.67 : 19,528.17 = 7,760.16 : x
2. Step 2: Convert to fraction form
   13,022.67/19,528.17 = 7,760.16/x
3. Step 3: Cross multiply
   13,022.67x = 19,528.17 × 7,760.16
4. Step 4: Simplify right side
   13,022.67x = 151,541,723.71
5. Step 5: Solve for x
   x = 151,541,723.71/13,022.67
6. Step 6: Final answer
   x = 11,636.76