Finding the Fourth Proportional to 765,067.71, 1,147,603.59 and 365,617.56

Step by Step Solution

1. Step 1: Write the proportion equation
   765,067.71 : 1,147,603.59 = 365,617.56 : x
2. Step 2: Convert to fraction form
   765,067.71/1,147,603.59 = 365,617.56/x
3. Step 3: Cross multiply
   765,067.71x = 1,147,603.59 × 365,617.56
4. Step 4: Simplify right side
   765,067.71x = 419,584,024,423.04
5. Step 5: Solve for x
   x = 419,584,024,423.04/765,067.71
6. Step 6: Final answer
   x = 548,427.31