Finding the Fourth Proportional to 340,450.50, 469,836.27 and 189,547.50

Step by Step Solution

1. Step 1: Write the proportion equation
   340,450.50 : 469,836.27 = 189,547.50 : x
2. Step 2: Convert to fraction form
   340,450.50/469,836.27 = 189,547.50/x
3. Step 3: Cross multiply
   340,450.50x = 469,836.27 × 189,547.50
4. Step 4: Simplify right side
   340,450.50x = 89,056,290,387.83
5. Step 5: Solve for x
   x = 89,056,290,387.83/340,450.50
6. Step 6: Final answer
   x = 261,583.67