Finding the Fourth Proportional to 109,406.43, 164,137.32 and 30,520.62

Step by Step Solution

1. Step 1: Write the proportion equation
   109,406.43 : 164,137.32 = 30,520.62 : x
2. Step 2: Convert to fraction form
   109,406.43/164,137.32 = 30,520.62/x
3. Step 3: Cross multiply
   109,406.43x = 164,137.32 × 30,520.62
4. Step 4: Simplify right side
   109,406.43x = 5,009,572,771.54
5. Step 5: Solve for x
   x = 5,009,572,771.54/109,406.43
6. Step 6: Final answer
   x = 45,788.65