Finding the Fourth Proportional to 423,091.86, 635,200.94 and 245,726.16

Step by Step Solution

1. Step 1: Write the proportion equation
   423,091.86 : 635,200.94 = 245,726.16 : x
2. Step 2: Convert to fraction form
   423,091.86/635,200.94 = 245,726.16/x
3. Step 3: Cross multiply
   423,091.86x = 635,200.94 × 245,726.16
4. Step 4: Simplify right side
   423,091.86x = 156,085,484,664.69
5. Step 5: Solve for x
   x = 156,085,484,664.69/423,091.86
6. Step 6: Final answer
   x = 368,916.31