Finding the Fourth Proportional to 163,426.16, 245,213.17 and 83,422.80

Step by Step Solution

1. Step 1: Write the proportion equation
   163,426.16 : 245,213.17 = 83,422.80 : x
2. Step 2: Convert to fraction form
   163,426.16/245,213.17 = 83,422.80/x
3. Step 3: Cross multiply
   163,426.16x = 245,213.17 × 83,422.80
4. Step 4: Simplify right side
   163,426.16x = 20,456,369,029.72
5. Step 5: Solve for x
   x = 20,456,369,029.72/163,426.16
6. Step 6: Final answer
   x = 125,171.94