Finding the Fourth Proportional to 109,700.82, 164,557.62 and 30,821.20

Step by Step Solution

1. Step 1: Write the proportion equation
   109,700.82 : 164,557.62 = 30,821.20 : x
2. Step 2: Convert to fraction form
   109,700.82/164,557.62 = 30,821.20/x
3. Step 3: Cross multiply
   109,700.82x = 164,557.62 × 30,821.20
4. Step 4: Simplify right side
   109,700.82x = 5,071,862,906.15
5. Step 5: Solve for x
   x = 5,071,862,906.15/109,700.82
6. Step 6: Final answer
   x = 46,233.59