Finding the Fourth Proportional to 171,275.69, 256,581.06 and 126,215.25

Step by Step Solution

1. Step 1: Write the proportion equation
   171,275.69 : 256,581.06 = 126,215.25 : x
2. Step 2: Convert to fraction form
   171,275.69/256,581.06 = 126,215.25/x
3. Step 3: Cross multiply
   171,275.69x = 256,581.06 × 126,215.25
4. Step 4: Simplify right side
   171,275.69x = 32,384,442,002.09
5. Step 5: Solve for x
   x = 32,384,442,002.09/171,275.69
6. Step 6: Final answer
   x = 189,077.87