Finding the Fourth Proportional to 111,372.56, 166,687.76 and 89,081.36

Step by Step Solution

1. Step 1: Write the proportion equation
   111,372.56 : 166,687.76 = 89,081.36 : x
2. Step 2: Convert to fraction form
   111,372.56/166,687.76 = 89,081.36/x
3. Step 3: Cross multiply
   111,372.56x = 166,687.76 × 89,081.36
4. Step 4: Simplify right side
   111,372.56x = 14,848,772,356.15
5. Step 5: Solve for x
   x = 14,848,772,356.15/111,372.56
6. Step 6: Final answer
   x = 133,325.23