Finding the Fourth Proportional to 220,369.51, 304,128.37 and 123,571.83

Step by Step Solution

1. Step 1: Write the proportion equation
   220,369.51 : 304,128.37 = 123,571.83 : x
2. Step 2: Convert to fraction form
   220,369.51/304,128.37 = 123,571.83/x
3. Step 3: Cross multiply
   220,369.51x = 304,128.37 × 123,571.83
4. Step 4: Simplify right side
   220,369.51x = 37,581,698,820.04
5. Step 5: Solve for x
   x = 37,581,698,820.04/220,369.51
6. Step 6: Final answer
   x = 170,539.47