Finding the Fourth Proportional to 213,123.33, 294,089.25 and 117,623.86

Step by Step Solution

1. Step 1: Write the proportion equation
   213,123.33 : 294,089.25 = 117,623.86 : x
2. Step 2: Convert to fraction form
   213,123.33/294,089.25 = 117,623.86/x
3. Step 3: Cross multiply
   213,123.33x = 294,089.25 × 117,623.86
4. Step 4: Simplify right side
   213,123.33x = 34,591,912,769.51
5. Step 5: Solve for x
   x = 34,591,912,769.51/213,123.33
6. Step 6: Final answer
   x = 162,309.37