Finding the Fourth Proportional to 109,648.30, 164,477.31 and 30,760.78

Step by Step Solution

1. Step 1: Write the proportion equation
   109,648.30 : 164,477.31 = 30,760.78 : x
2. Step 2: Convert to fraction form
   109,648.30/164,477.31 = 30,760.78/x
3. Step 3: Cross multiply
   109,648.30x = 164,477.31 × 30,760.78
4. Step 4: Simplify right side
   109,648.30x = 5,059,450,347.90
5. Step 5: Solve for x
   x = 5,059,450,347.90/109,648.30
6. Step 6: Final answer
   x = 46,142.53