Finding the Fourth Proportional to 108,336.16, 149,544.10 and 81,556.34

Step by Step Solution

1. Step 1: Write the proportion equation
   108,336.16 : 149,544.10 = 81,556.34 : x
2. Step 2: Convert to fraction form
   108,336.16/149,544.10 = 81,556.34/x
3. Step 3: Cross multiply
   108,336.16x = 149,544.10 × 81,556.34
4. Step 4: Simplify right side
   108,336.16x = 12,196,269,851.22
5. Step 5: Solve for x
   x = 12,196,269,851.22/108,336.16
6. Step 6: Final answer
   x = 112,578.02