Finding the Fourth Proportional to 12,880.05, 17,774.46 and 7,844.27

Step by Step Solution

1. Step 1: Write the proportion equation
   12,880.05 : 17,774.46 = 7,844.27 : x
2. Step 2: Convert to fraction form
   12,880.05/17,774.46 = 7,844.27/x
3. Step 3: Cross multiply
   12,880.05x = 17,774.46 × 7,844.27
4. Step 4: Simplify right side
   12,880.05x = 139,427,535.25
5. Step 5: Solve for x
   x = 139,427,535.25/12,880.05
6. Step 6: Final answer
   x = 10,825.08