Finding the Fourth Proportional to 300,390.06, 414,538.43 and 164,424.72

Step by Step Solution

1. Step 1: Write the proportion equation
   300,390.06 : 414,538.43 = 164,424.72 : x
2. Step 2: Convert to fraction form
   300,390.06/414,538.43 = 164,424.72/x
3. Step 3: Cross multiply
   300,390.06x = 414,538.43 × 164,424.72
4. Step 4: Simplify right side
   300,390.06x = 68,160,364,459.87
5. Step 5: Solve for x
   x = 68,160,364,459.87/300,390.06
6. Step 6: Final answer
   x = 226,906.19