Finding the Fourth Proportional to 301,131.14, 451,807.40 and 123,590.48

Step by Step Solution

1. Step 1: Write the proportion equation
   301,131.14 : 451,807.40 = 123,590.48 : x
2. Step 2: Convert to fraction form
   301,131.14/451,807.40 = 123,590.48/x
3. Step 3: Cross multiply
   301,131.14x = 451,807.40 × 123,590.48
4. Step 4: Simplify right side
   301,131.14x = 55,839,091,483.49
5. Step 5: Solve for x
   x = 55,839,091,483.49/301,131.14
6. Step 6: Final answer
   x = 185,431.15