Finding the Fourth Proportional to 406,601.03, 561,112.71 and 225,315.98

Step by Step Solution

1. Step 1: Write the proportion equation
   406,601.03 : 561,112.71 = 225,315.98 : x
2. Step 2: Convert to fraction form
   406,601.03/561,112.71 = 225,315.98/x
3. Step 3: Cross multiply
   406,601.03x = 561,112.71 × 225,315.98
4. Step 4: Simplify right side
   406,601.03x = 126,427,661,546.89
5. Step 5: Solve for x
   x = 126,427,661,546.89/406,601.03
6. Step 6: Final answer
   x = 310,937.88