Finding the Fourth Proportional to 374,742.45, 517,185.41 and 238,900.59

Step by Step Solution

1. Step 1: Write the proportion equation
   374,742.45 : 517,185.41 = 238,900.59 : x
2. Step 2: Convert to fraction form
   374,742.45/517,185.41 = 238,900.59/x
3. Step 3: Cross multiply
   374,742.45x = 517,185.41 × 238,900.59
4. Step 4: Simplify right side
   374,742.45x = 123,555,898,393.89
5. Step 5: Solve for x
   x = 123,555,898,393.89/374,742.45
6. Step 6: Final answer
   x = 329,708.84