Finding the Fourth Proportional to 259,499.22, 358,111.49 and 144,776.89

Step by Step Solution

1. Step 1: Write the proportion equation
   259,499.22 : 358,111.49 = 144,776.89 : x
2. Step 2: Convert to fraction form
   259,499.22/358,111.49 = 144,776.89/x
3. Step 3: Cross multiply
   259,499.22x = 358,111.49 × 144,776.89
4. Step 4: Simplify right side
   259,499.22x = 51,846,267,795.47
5. Step 5: Solve for x
   x = 51,846,267,795.47/259,499.22
6. Step 6: Final answer
   x = 199,793.54