Finding the Fourth Proportional to 218,506.79, 301,545.01 and 123,016.91

Step by Step Solution

1. Step 1: Write the proportion equation
   218,506.79 : 301,545.01 = 123,016.91 : x
2. Step 2: Convert to fraction form
   218,506.79/301,545.01 = 123,016.91/x
3. Step 3: Cross multiply
   218,506.79x = 301,545.01 × 123,016.91
4. Step 4: Simplify right side
   218,506.79x = 37,095,134,002.17
5. Step 5: Solve for x
   x = 37,095,134,002.17/218,506.79
6. Step 6: Final answer
   x = 169,766.50