Finding the Fourth Proportional to 7,128.74, 10,697.69 and 3,844.12

Step by Step Solution

1. Step 1: Write the proportion equation
   7,128.74 : 10,697.69 = 3,844.12 : x
2. Step 2: Convert to fraction form
   7,128.74/10,697.69 = 3,844.12/x
3. Step 3: Cross multiply
   7,128.74x = 10,697.69 × 3,844.12
4. Step 4: Simplify right side
   7,128.74x = 41,123,204.08
5. Step 5: Solve for x
   x = 41,123,204.08/7,128.74
6. Step 6: Final answer
   x = 5,768.65