Finding the Fourth Proportional to 256,741.83, 354,276.47 and 142,002.24

Step by Step Solution

1. Step 1: Write the proportion equation
   256,741.83 : 354,276.47 = 142,002.24 : x
2. Step 2: Convert to fraction form
   256,741.83/354,276.47 = 142,002.24/x
3. Step 3: Cross multiply
   256,741.83x = 354,276.47 × 142,002.24
4. Step 4: Simplify right side
   256,741.83x = 50,308,051,609.28
5. Step 5: Solve for x
   x = 50,308,051,609.28/256,741.83
6. Step 6: Final answer
   x = 195,948.01