Finding the Fourth Proportional to 406,868.52, 561,477.56 and 225,575.82

Step by Step Solution

1. Step 1: Write the proportion equation
   406,868.52 : 561,477.56 = 225,575.82 : x
2. Step 2: Convert to fraction form
   406,868.52/561,477.56 = 225,575.82/x
3. Step 3: Cross multiply
   406,868.52x = 561,477.56 × 225,575.82
4. Step 4: Simplify right side
   406,868.52x = 126,655,761,008.60
5. Step 5: Solve for x
   x = 126,655,761,008.60/406,868.52
6. Step 6: Final answer
   x = 311,294.08