Finding the Fourth Proportional to 407,399.58, 562,185.18 and 226,111.59

Step by Step Solution

1. Step 1: Write the proportion equation
   407,399.58 : 562,185.18 = 226,111.59 : x
2. Step 2: Convert to fraction form
   407,399.58/562,185.18 = 226,111.59/x
3. Step 3: Cross multiply
   407,399.58x = 562,185.18 × 226,111.59
4. Step 4: Simplify right side
   407,399.58x = 127,116,584,924.24
5. Step 5: Solve for x
   x = 127,116,584,924.24/407,399.58
6. Step 6: Final answer
   x = 312,019.43