Finding the Fourth Proportional to 109,503.05, 164,255.92 and 42,974.51

Step by Step Solution

1. Step 1: Write the proportion equation
   109,503.05 : 164,255.92 = 42,974.51 : x
2. Step 2: Convert to fraction form
   109,503.05/164,255.92 = 42,974.51/x
3. Step 3: Cross multiply
   109,503.05x = 164,255.92 × 42,974.51
4. Step 4: Simplify right side
   109,503.05x = 7,058,816,747.88
5. Step 5: Solve for x
   x = 7,058,816,747.88/109,503.05
6. Step 6: Final answer
   x = 64,462.29