Finding the Fourth Proportional to 258,773.89, 357,118.42 and 144,057.23

Step by Step Solution

1. Step 1: Write the proportion equation
   258,773.89 : 357,118.42 = 144,057.23 : x
2. Step 2: Convert to fraction form
   258,773.89/357,118.42 = 144,057.23/x
3. Step 3: Cross multiply
   258,773.89x = 357,118.42 × 144,057.23
4. Step 4: Simplify right side
   258,773.89x = 51,445,490,899.83
5. Step 5: Solve for x
   x = 51,445,490,899.83/258,773.89
6. Step 6: Final answer
   x = 198,804.80