Finding the Fourth Proportional to 300,724.51, 415,017.24 and 164,758.72

Step by Step Solution

1. Step 1: Write the proportion equation
   300,724.51 : 415,017.24 = 164,758.72 : x
2. Step 2: Convert to fraction form
   300,724.51/415,017.24 = 164,758.72/x
3. Step 3: Cross multiply
   300,724.51x = 415,017.24 × 164,758.72
4. Step 4: Simplify right side
   300,724.51x = 68,377,709,240.33
5. Step 5: Solve for x
   x = 68,377,709,240.33/300,724.51
6. Step 6: Final answer
   x = 227,376.58