Finding the Fourth Proportional to 101,145.63, 150,949.33 and 89,935.83

Step by Step Solution

1. Step 1: Write the proportion equation
   101,145.63 : 150,949.33 = 89,935.83 : x
2. Step 2: Convert to fraction form
   101,145.63/150,949.33 = 89,935.83/x
3. Step 3: Cross multiply
   101,145.63x = 150,949.33 × 89,935.83
4. Step 4: Simplify right side
   101,145.63x = 13,575,753,281.49
5. Step 5: Solve for x
   x = 13,575,753,281.49/101,145.63
6. Step 6: Final answer
   x = 134,219.87