Finding the Fourth Proportional to 354,131.69, 488,687.51 and 192,983.31

Step by Step Solution

1. Step 1: Write the proportion equation
   354,131.69 : 488,687.51 = 192,983.31 : x
2. Step 2: Convert to fraction form
   354,131.69/488,687.51 = 192,983.31/x
3. Step 3: Cross multiply
   354,131.69x = 488,687.51 × 192,983.31
4. Step 4: Simplify right side
   354,131.69x = 94,308,533,235.46
5. Step 5: Solve for x
   x = 94,308,533,235.46/354,131.69
6. Step 6: Final answer
   x = 266,309.22