Finding the Fourth Proportional to 109,399.40, 164,126.78 and 30,513.62

Step by Step Solution

1. Step 1: Write the proportion equation
   109,399.40 : 164,126.78 = 30,513.62 : x
2. Step 2: Convert to fraction form
   109,399.40/164,126.78 = 30,513.62/x
3. Step 3: Cross multiply
   109,399.40x = 164,126.78 × 30,513.62
4. Step 4: Simplify right side
   109,399.40x = 5,008,102,044.18
5. Step 5: Solve for x
   x = 5,008,102,044.18/109,399.40
6. Step 6: Final answer
   x = 45,778.15