Finding the Fourth Proportional to 7,783.36, 10,733.78 and 5,126.15

Step by Step Solution

1. Step 1: Write the proportion equation
   7,783.36 : 10,733.78 = 5,126.15 : x
2. Step 2: Convert to fraction form
   7,783.36/10,733.78 = 5,126.15/x
3. Step 3: Cross multiply
   7,783.36x = 10,733.78 × 5,126.15
4. Step 4: Simplify right side
   7,783.36x = 55,023,006.00
5. Step 5: Solve for x
   x = 55,023,006.00/7,783.36
6. Step 6: Final answer
   x = 7,069.32