Finding the Fourth Proportional to 428,976.72, 592,015.92 and 247,696.30

Step by Step Solution

1. Step 1: Write the proportion equation
   428,976.72 : 592,015.92 = 247,696.30 : x
2. Step 2: Convert to fraction form
   428,976.72/592,015.92 = 247,696.30/x
3. Step 3: Cross multiply
   428,976.72x = 592,015.92 × 247,696.30
4. Step 4: Simplify right side
   428,976.72x = 146,640,152,925.10
5. Step 5: Solve for x
   x = 146,640,152,925.10/428,976.72
6. Step 6: Final answer
   x = 341,837.09