Finding the Fourth Proportional to 108,902.84, 164,162.31 and 99,443.48

Step by Step Solution

1. Step 1: Write the proportion equation
   108,902.84 : 164,162.31 = 99,443.48 : x
2. Step 2: Convert to fraction form
   108,902.84/164,162.31 = 99,443.48/x
3. Step 3: Cross multiply
   108,902.84x = 164,162.31 × 99,443.48
4. Step 4: Simplify right side
   108,902.84x = 16,324,871,391.24
5. Step 5: Solve for x
   x = 16,324,871,391.24/108,902.84
6. Step 6: Final answer
   x = 149,903.08