Finding the Fourth Proportional to 260,017.50, 358,824.15 and 140,785.50

Step by Step Solution

1. Step 1: Write the proportion equation
   260,017.50 : 358,824.15 = 140,785.50 : x
2. Step 2: Convert to fraction form
   260,017.50/358,824.15 = 140,785.50/x
3. Step 3: Cross multiply
   260,017.50x = 358,824.15 × 140,785.50
4. Step 4: Simplify right side
   260,017.50x = 50,517,237,369.83
5. Step 5: Solve for x
   x = 50,517,237,369.83/260,017.50
6. Step 6: Final answer
   x = 194,283.99