Finding the Fourth Proportional to 259,500.78, 358,111.13 and 146,323.53

Step by Step Solution

1. Step 1: Write the proportion equation
   259,500.78 : 358,111.13 = 146,323.53 : x
2. Step 2: Convert to fraction form
   259,500.78/358,111.13 = 146,323.53/x
3. Step 3: Cross multiply
   259,500.78x = 358,111.13 × 146,323.53
4. Step 4: Simplify right side
   259,500.78x = 52,400,083,942.27
5. Step 5: Solve for x
   x = 52,400,083,942.27/259,500.78
6. Step 6: Final answer
   x = 201,926.50