Finding the Fourth Proportional to 109,819.49, 164,541 and 73,728.34

Step by Step Solution

1. Step 1: Write the proportion equation
   109,819.49 : 164,541 = 73,728.34 : x
2. Step 2: Convert to fraction form
   109,819.49/164,541 = 73,728.34/x
3. Step 3: Cross multiply
   109,819.49x = 164,541 × 73,728.34
4. Step 4: Simplify right side
   109,819.49x = 12,131,334,791.94
5. Step 5: Solve for x
   x = 12,131,334,791.94/109,819.49
6. Step 6: Final answer
   x = 110,466.14