Finding the Fourth Proportional to 300,134.72, 414,128.61 and 171,070.74

Step by Step Solution

1. Step 1: Write the proportion equation
   300,134.72 : 414,128.61 = 171,070.74 : x
2. Step 2: Convert to fraction form
   300,134.72/414,128.61 = 171,070.74/x
3. Step 3: Cross multiply
   300,134.72x = 414,128.61 × 171,070.74
4. Step 4: Simplify right side
   300,134.72x = 70,845,287,767.87
5. Step 5: Solve for x
   x = 70,845,287,767.87/300,134.72
6. Step 6: Final answer
   x = 236,044.96