Finding the Fourth Proportional to 258,016.32, 356,061.12 and 144,839.04

Step by Step Solution

1. Step 1: Write the proportion equation
   258,016.32 : 356,061.12 = 144,839.04 : x
2. Step 2: Convert to fraction form
   258,016.32/356,061.12 = 144,839.04/x
3. Step 3: Cross multiply
   258,016.32x = 356,061.12 × 144,839.04
4. Step 4: Simplify right side
   258,016.32x = 51,571,550,802.12
5. Step 5: Solve for x
   x = 51,571,550,802.12/258,016.32
6. Step 6: Final answer
   x = 199,877.09