Finding the Fourth Proportional to 333,978.82, 460,960.32 and 307,078.72

Step by Step Solution

1. Step 1: Write the proportion equation
   333,978.82 : 460,960.32 = 307,078.72 : x
2. Step 2: Convert to fraction form
   333,978.82/460,960.32 = 307,078.72/x
3. Step 3: Cross multiply
   333,978.82x = 460,960.32 × 307,078.72
4. Step 4: Simplify right side
   333,978.82x = 141,551,105,036.39
5. Step 5: Solve for x
   x = 141,551,105,036.39/333,978.82
6. Step 6: Final answer
   x = 423,832.58