Finding the Fourth Proportional to 73,147.50, 109,721.30 and 17,743.50

Step by Step Solution

1. Step 1: Write the proportion equation
   73,147.50 : 109,721.30 = 17,743.50 : x
2. Step 2: Convert to fraction form
   73,147.50/109,721.30 = 17,743.50/x
3. Step 3: Cross multiply
   73,147.50x = 109,721.30 × 17,743.50
4. Step 4: Simplify right side
   73,147.50x = 1,946,839,797.83
5. Step 5: Solve for x
   x = 1,946,839,797.83/73,147.50
6. Step 6: Final answer
   x = 26,615.26