Finding the Fourth Proportional to 217,612.01, 300,227.59 and 142,204.25

Step by Step Solution

1. Step 1: Write the proportion equation
   217,612.01 : 300,227.59 = 142,204.25 : x
2. Step 2: Convert to fraction form
   217,612.01/300,227.59 = 142,204.25/x
3. Step 3: Cross multiply
   217,612.01x = 300,227.59 × 142,204.25
4. Step 4: Simplify right side
   217,612.01x = 42,693,639,265.26
5. Step 5: Solve for x
   x = 42,693,639,265.26/217,612.01
6. Step 6: Final answer
   x = 196,191.56