Finding the Fourth Proportional to 101,141.12, 150,942.63 and 89,931.33

Step by Step Solution

1. Step 1: Write the proportion equation
   101,141.12 : 150,942.63 = 89,931.33 : x
2. Step 2: Convert to fraction form
   101,141.12/150,942.63 = 89,931.33/x
3. Step 3: Cross multiply
   101,141.12x = 150,942.63 × 89,931.33
4. Step 4: Simplify right side
   101,141.12x = 13,574,471,048.04
5. Step 5: Solve for x
   x = 13,574,471,048.04/101,141.12
6. Step 6: Final answer
   x = 134,213.17