Finding the Fourth Proportional to 388,789.03, 536,597.52 and 308,826.82

Step by Step Solution

1. Step 1: Write the proportion equation
   388,789.03 : 536,597.52 = 308,826.82 : x
2. Step 2: Convert to fraction form
   388,789.03/536,597.52 = 308,826.82/x
3. Step 3: Cross multiply
   388,789.03x = 536,597.52 × 308,826.82
4. Step 4: Simplify right side
   388,789.03x = 165,715,705,721.49
5. Step 5: Solve for x
   x = 165,715,705,721.49/388,789.03
6. Step 6: Final answer
   x = 426,235.55