Finding the Fourth Proportional to 251,498.47, 347,066.16 and 142,623.37

Step by Step Solution

1. Step 1: Write the proportion equation
   251,498.47 : 347,066.16 = 142,623.37 : x
2. Step 2: Convert to fraction form
   251,498.47/347,066.16 = 142,623.37/x
3. Step 3: Cross multiply
   251,498.47x = 347,066.16 × 142,623.37
4. Step 4: Simplify right side
   251,498.47x = 49,499,745,352.16
5. Step 5: Solve for x
   x = 49,499,745,352.16/251,498.47
6. Step 6: Final answer
   x = 196,819.27