Finding the Fourth Proportional to 301,114.69, 415,538.28 and 166,978.69

Step by Step Solution

1. Step 1: Write the proportion equation
   301,114.69 : 415,538.28 = 166,978.69 : x
2. Step 2: Convert to fraction form
   301,114.69/415,538.28 = 166,978.69/x
3. Step 3: Cross multiply
   301,114.69x = 415,538.28 × 166,978.69
4. Step 4: Simplify right side
   301,114.69x = 69,386,036,600.41
5. Step 5: Solve for x
   x = 69,386,036,600.41/301,114.69
6. Step 6: Final answer
   x = 230,430.59