Finding the Fourth Proportional to 300,943, 415,301.40 and 166,807

Step by Step Solution

1. Step 1: Write the proportion equation
   300,943 : 415,301.40 = 166,807 : x
2. Step 2: Convert to fraction form
   300,943/415,301.40 = 166,807/x
3. Step 3: Cross multiply
   300,943x = 415,301.40 × 166,807
4. Step 4: Simplify right side
   300,943x = 69,275,180,629.80
5. Step 5: Solve for x
   x = 69,275,180,629.80/300,943
6. Step 6: Final answer
   x = 230,193.69