Finding the Fourth Proportional to 81,920.02, 113,058.15 and 50,110.10

Step by Step Solution

1. Step 1: Write the proportion equation
   81,920.02 : 113,058.15 = 50,110.10 : x
2. Step 2: Convert to fraction form
   81,920.02/113,058.15 = 50,110.10/x
3. Step 3: Cross multiply
   81,920.02x = 113,058.15 × 50,110.10
4. Step 4: Simplify right side
   81,920.02x = 5,665,355,202.32
5. Step 5: Solve for x
   x = 5,665,355,202.32/81,920.02
6. Step 6: Final answer
   x = 69,157.15