Finding the Fourth Proportional to 618,404.10, 927,066.15 and 239,583.30

Step by Step Solution

1. Step 1: Write the proportion equation
   618,404.10 : 927,066.15 = 239,583.30 : x
2. Step 2: Convert to fraction form
   618,404.10/927,066.15 = 239,583.30/x
3. Step 3: Cross multiply
   618,404.10x = 927,066.15 × 239,583.30
4. Step 4: Simplify right side
   618,404.10x = 222,109,567,535.30
5. Step 5: Solve for x
   x = 222,109,567,535.30/618,404.10
6. Step 6: Final answer
   x = 359,165.74