Finding the Fourth Proportional to 109,485.90, 164,216.70 and 30,608.10

Step by Step Solution

1. Step 1: Write the proportion equation
   109,485.90 : 164,216.70 = 30,608.10 : x
2. Step 2: Convert to fraction form
   109,485.90/164,216.70 = 30,608.10/x
3. Step 3: Cross multiply
   109,485.90x = 164,216.70 × 30,608.10
4. Step 4: Simplify right side
   109,485.90x = 5,026,361,175.27
5. Step 5: Solve for x
   x = 5,026,361,175.27/109,485.90
6. Step 6: Final answer
   x = 45,908.75