Finding the Fourth Proportional to 12,944.76, 19,425.78 and 7,105.47

Step by Step Solution

1. Step 1: Write the proportion equation
   12,944.76 : 19,425.78 = 7,105.47 : x
2. Step 2: Convert to fraction form
   12,944.76/19,425.78 = 7,105.47/x
3. Step 3: Cross multiply
   12,944.76x = 19,425.78 × 7,105.47
4. Step 4: Simplify right side
   12,944.76x = 138,029,297.02
5. Step 5: Solve for x
   x = 138,029,297.02/12,944.76
6. Step 6: Final answer
   x = 10,662.95