Finding the Fourth Proportional to 213,084.72, 294,167.45 and 155,659.56

Step by Step Solution

1. Step 1: Write the proportion equation
   213,084.72 : 294,167.45 = 155,659.56 : x
2. Step 2: Convert to fraction form
   213,084.72/294,167.45 = 155,659.56/x
3. Step 3: Cross multiply
   213,084.72x = 294,167.45 × 155,659.56
4. Step 4: Simplify right side
   213,084.72x = 45,789,975,833.32
5. Step 5: Solve for x
   x = 45,789,975,833.32/213,084.72
6. Step 6: Final answer
   x = 214,890.94