Finding the Fourth Proportional to 259,598.72, 358,408.41 and 199,053.05

Step by Step Solution

1. Step 1: Write the proportion equation
   259,598.72 : 358,408.41 = 199,053.05 : x
2. Step 2: Convert to fraction form
   259,598.72/358,408.41 = 199,053.05/x
3. Step 3: Cross multiply
   259,598.72x = 358,408.41 × 199,053.05
4. Step 4: Simplify right side
   259,598.72x = 71,342,287,156.15
5. Step 5: Solve for x
   x = 71,342,287,156.15/259,598.72
6. Step 6: Final answer
   x = 274,817.56