Finding the Fourth Proportional to 149,004.56, 205,626.33 and 81,936.56

Step by Step Solution

1. Step 1: Write the proportion equation
   149,004.56 : 205,626.33 = 81,936.56 : x
2. Step 2: Convert to fraction form
   149,004.56/205,626.33 = 81,936.56/x
3. Step 3: Cross multiply
   149,004.56x = 205,626.33 × 81,936.56
4. Step 4: Simplify right side
   149,004.56x = 16,848,314,639.69
5. Step 5: Solve for x
   x = 16,848,314,639.69/149,004.56
6. Step 6: Final answer
   x = 113,072.47