Finding the Fourth Proportional to 260,046.50, 358,864.18 and 140,814.50

Step by Step Solution

1. Step 1: Write the proportion equation
   260,046.50 : 358,864.18 = 140,814.50 : x
2. Step 2: Convert to fraction form
   260,046.50/358,864.18 = 140,814.50/x
3. Step 3: Cross multiply
   260,046.50x = 358,864.18 × 140,814.50
4. Step 4: Simplify right side
   260,046.50x = 50,533,280,074.61
5. Step 5: Solve for x
   x = 50,533,280,074.61/260,046.50
6. Step 6: Final answer
   x = 194,324.02