Finding the Fourth Proportional to 610,355.52, 842,300.72 and 338,434.88

Step by Step Solution

1. Step 1: Write the proportion equation
   610,355.52 : 842,300.72 = 338,434.88 : x
2. Step 2: Convert to fraction form
   610,355.52/842,300.72 = 338,434.88/x
3. Step 3: Cross multiply
   610,355.52x = 842,300.72 × 338,434.88
4. Step 4: Simplify right side
   610,355.52x = 285,063,943,097.11
5. Step 5: Solve for x
   x = 285,063,943,097.11/610,355.52
6. Step 6: Final answer
   x = 467,045.74