Finding the Fourth Proportional to 460,105.32, 690,227.64 and 144,532.56

Step by Step Solution

1. Step 1: Write the proportion equation
   460,105.32 : 690,227.64 = 144,532.56 : x
2. Step 2: Convert to fraction form
   460,105.32/690,227.64 = 144,532.56/x
3. Step 3: Cross multiply
   460,105.32x = 690,227.64 × 144,532.56
4. Step 4: Simplify right side
   460,105.32x = 99,760,367,791.96
5. Step 5: Solve for x
   x = 99,760,367,791.96/460,105.32
6. Step 6: Final answer
   x = 216,820.72