Finding the Fourth Proportional to 42,944.72, 64,422.90 and 14,857.22

Step by Step Solution

1. Step 1: Write the proportion equation
   42,944.72 : 64,422.90 = 14,857.22 : x
2. Step 2: Convert to fraction form
   42,944.72/64,422.90 = 14,857.22/x
3. Step 3: Cross multiply
   42,944.72x = 64,422.90 × 14,857.22
4. Step 4: Simplify right side
   42,944.72x = 957,145,198.34
5. Step 5: Solve for x
   x = 957,145,198.34/42,944.72
6. Step 6: Final answer
   x = 22,287.84