Finding the Fourth Proportional to 60,743.46, 91,128.54 and 18,629.31

Step by Step Solution

1. Step 1: Write the proportion equation
   60,743.46 : 91,128.54 = 18,629.31 : x
2. Step 2: Convert to fraction form
   60,743.46/91,128.54 = 18,629.31/x
3. Step 3: Cross multiply
   60,743.46x = 91,128.54 × 18,629.31
4. Step 4: Simplify right side
   60,743.46x = 1,697,661,821.51
5. Step 5: Solve for x
   x = 1,697,661,821.51/60,743.46
6. Step 6: Final answer
   x = 27,948.06