Finding the Fourth Proportional to 434,065.34, 599,010.82 and 243,078.78

Step by Step Solution

1. Step 1: Write the proportion equation
   434,065.34 : 599,010.82 = 243,078.78 : x
2. Step 2: Convert to fraction form
   434,065.34/599,010.82 = 243,078.78/x
3. Step 3: Cross multiply
   434,065.34x = 599,010.82 × 243,078.78
4. Step 4: Simplify right side
   434,065.34x = 145,606,819,332.40
5. Step 5: Solve for x
   x = 145,606,819,332.40/434,065.34
6. Step 6: Final answer
   x = 335,449.08