Finding the Fourth Proportional to 294,109.12, 405,870.54 and 166,784.71

Step by Step Solution

1. Step 1: Write the proportion equation
   294,109.12 : 405,870.54 = 166,784.71 : x
2. Step 2: Convert to fraction form
   294,109.12/405,870.54 = 166,784.71/x
3. Step 3: Cross multiply
   294,109.12x = 405,870.54 × 166,784.71
4. Step 4: Simplify right side
   294,109.12x = 67,693,000,311.44
5. Step 5: Solve for x
   x = 67,693,000,311.44/294,109.12
6. Step 6: Final answer
   x = 230,162.87