Finding the Fourth Proportional to 222,786.72, 334,179.36 and 56,574.72

Step by Step Solution

1. Step 1: Write the proportion equation
   222,786.72 : 334,179.36 = 56,574.72 : x
2. Step 2: Convert to fraction form
   222,786.72/334,179.36 = 56,574.72/x
3. Step 3: Cross multiply
   222,786.72x = 334,179.36 × 56,574.72
4. Step 4: Simplify right side
   222,786.72x = 18,906,103,721.78
5. Step 5: Solve for x
   x = 18,906,103,721.78/222,786.72
6. Step 6: Final answer
   x = 84,861.90