Finding the Fourth Proportional to 218,958.51, 302,158.72 and 123,465.29

Step by Step Solution

1. Step 1: Write the proportion equation
   218,958.51 : 302,158.72 = 123,465.29 : x
2. Step 2: Convert to fraction form
   218,958.51/302,158.72 = 123,465.29/x
3. Step 3: Cross multiply
   218,958.51x = 302,158.72 × 123,465.29
4. Step 4: Simplify right side
   218,958.51x = 37,306,112,634.37
5. Step 5: Solve for x
   x = 37,306,112,634.37/218,958.51
6. Step 6: Final answer
   x = 170,379.82