Finding the Fourth Proportional to 109,433.10, 164,028.15 and 42,851.10

Step by Step Solution

1. Step 1: Write the proportion equation
   109,433.10 : 164,028.15 = 42,851.10 : x
2. Step 2: Convert to fraction form
   109,433.10/164,028.15 = 42,851.10/x
3. Step 3: Cross multiply
   109,433.10x = 164,028.15 × 42,851.10
4. Step 4: Simplify right side
   109,433.10x = 7,028,786,658.47
5. Step 5: Solve for x
   x = 7,028,786,658.47/109,433.10
6. Step 6: Final answer
   x = 64,229.07