Finding the Fourth Proportional to 306,498.52, 422,970.06 and 170,538.22

Step by Step Solution

1. Step 1: Write the proportion equation
   306,498.52 : 422,970.06 = 170,538.22 : x
2. Step 2: Convert to fraction form
   306,498.52/422,970.06 = 170,538.22/x
3. Step 3: Cross multiply
   306,498.52x = 422,970.06 × 170,538.22
4. Step 4: Simplify right side
   306,498.52x = 72,132,561,145.69
5. Step 5: Solve for x
   x = 72,132,561,145.69/306,498.52
6. Step 6: Final answer
   x = 235,343.91