Finding the Fourth Proportional to 300,653.86, 414,897.78 and 164,686.72

Step by Step Solution

1. Step 1: Write the proportion equation
   300,653.86 : 414,897.78 = 164,686.72 : x
2. Step 2: Convert to fraction form
   300,653.86/414,897.78 = 164,686.72/x
3. Step 3: Cross multiply
   300,653.86x = 414,897.78 × 164,686.72
4. Step 4: Simplify right side
   300,653.86x = 68,328,154,523.48
5. Step 5: Solve for x
   x = 68,328,154,523.48/300,653.86
6. Step 6: Final answer
   x = 227,265.18