Finding the Fourth Proportional to 428,823.71, 591,765.89 and 245,050.59

Step by Step Solution

1. Step 1: Write the proportion equation
   428,823.71 : 591,765.89 = 245,050.59 : x
2. Step 2: Convert to fraction form
   428,823.71/591,765.89 = 245,050.59/x
3. Step 3: Cross multiply
   428,823.71x = 591,765.89 × 245,050.59
4. Step 4: Simplify right side
   428,823.71x = 145,012,578,151.56
5. Step 5: Solve for x
   x = 145,012,578,151.56/428,823.71
6. Step 6: Final answer
   x = 338,163.62