Finding the Fourth Proportional to 110,690.47, 166,047.57 and 30,728.78

Step by Step Solution

1. Step 1: Write the proportion equation
   110,690.47 : 166,047.57 = 30,728.78 : x
2. Step 2: Convert to fraction form
   110,690.47/166,047.57 = 30,728.78/x
3. Step 3: Cross multiply
   110,690.47x = 166,047.57 × 30,728.78
4. Step 4: Simplify right side
   110,690.47x = 5,102,438,417.83
5. Step 5: Solve for x
   x = 5,102,438,417.83/110,690.47
6. Step 6: Final answer
   x = 46,096.46