Finding the Fourth Proportional to 213,162.54, 294,166.71 and 117,669.30

Step by Step Solution

1. Step 1: Write the proportion equation
   213,162.54 : 294,166.71 = 117,669.30 : x
2. Step 2: Convert to fraction form
   213,162.54/294,166.71 = 117,669.30/x
3. Step 3: Cross multiply
   213,162.54x = 294,166.71 × 117,669.30
4. Step 4: Simplify right side
   213,162.54x = 34,614,390,849.00
5. Step 5: Solve for x
   x = 34,614,390,849.00/213,162.54
6. Step 6: Final answer
   x = 162,384.96