Finding the Fourth Proportional to 406,460.30, 561,008.52 and 270,499.98

Step by Step Solution

1. Step 1: Write the proportion equation
   406,460.30 : 561,008.52 = 270,499.98 : x
2. Step 2: Convert to fraction form
   406,460.30/561,008.52 = 270,499.98/x
3. Step 3: Cross multiply
   406,460.30x = 561,008.52 × 270,499.98
4. Step 4: Simplify right side
   406,460.30x = 151,752,793,439.83
5. Step 5: Solve for x
   x = 151,752,793,439.83/406,460.30
6. Step 6: Final answer
   x = 373,352.07