Finding the Fourth Proportional to 428,196.51, 590,863.48 and 237,162.06

Step by Step Solution

1. Step 1: Write the proportion equation
   428,196.51 : 590,863.48 = 237,162.06 : x
2. Step 2: Convert to fraction form
   428,196.51/590,863.48 = 237,162.06/x
3. Step 3: Cross multiply
   428,196.51x = 590,863.48 × 237,162.06
4. Step 4: Simplify right side
   428,196.51x = 140,130,399,502.66
5. Step 5: Solve for x
   x = 140,130,399,502.66/428,196.51
6. Step 6: Final answer
   x = 327,257.22