Finding the Fourth Proportional to 340,981.50, 470,554.50 and 190,078.50

Step by Step Solution

1. Step 1: Write the proportion equation
   340,981.50 : 470,554.50 = 190,078.50 : x
2. Step 2: Convert to fraction form
   340,981.50/470,554.50 = 190,078.50/x
3. Step 3: Cross multiply
   340,981.50x = 470,554.50 × 190,078.50
4. Step 4: Simplify right side
   340,981.50x = 89,442,293,528.25
5. Step 5: Solve for x
   x = 89,442,293,528.25/340,981.50
6. Step 6: Final answer
   x = 262,308.35