Finding the Fourth Proportional to 218,667.42, 301,761.55 and 123,174.12

Step by Step Solution

1. Step 1: Write the proportion equation
   218,667.42 : 301,761.55 = 123,174.12 : x
2. Step 2: Convert to fraction form
   218,667.42/301,761.55 = 123,174.12/x
3. Step 3: Cross multiply
   218,667.42x = 301,761.55 × 123,174.12
4. Step 4: Simplify right side
   218,667.42x = 37,169,212,959.25
5. Step 5: Solve for x
   x = 37,169,212,959.25/218,667.42
6. Step 6: Final answer
   x = 169,980.57