Finding the Fourth Proportional to 7,784.36, 10,735.16 and 5,127.15

Step by Step Solution

1. Step 1: Write the proportion equation
   7,784.36 : 10,735.16 = 5,127.15 : x
2. Step 2: Convert to fraction form
   7,784.36/10,735.16 = 5,127.15/x
3. Step 3: Cross multiply
   7,784.36x = 10,735.16 × 5,127.15
4. Step 4: Simplify right side
   7,784.36x = 55,040,775.59
5. Step 5: Solve for x
   x = 55,040,775.59/7,784.36
6. Step 6: Final answer
   x = 7,070.69