Finding the Fourth Proportional to 269,074.20, 404,000.10 and 202,978.20

Step by Step Solution

1. Step 1: Write the proportion equation
   269,074.20 : 404,000.10 = 202,978.20 : x
2. Step 2: Convert to fraction form
   269,074.20/404,000.10 = 202,978.20/x
3. Step 3: Cross multiply
   269,074.20x = 404,000.10 × 202,978.20
4. Step 4: Simplify right side
   269,074.20x = 82,003,213,097.82
5. Step 5: Solve for x
   x = 82,003,213,097.82/269,074.20
6. Step 6: Final answer
   x = 304,760.59