Finding the Fourth Proportional to 143,091.89, 214,848.57 and 80,035.61

Step by Step Solution

1. Step 1: Write the proportion equation
   143,091.89 : 214,848.57 = 80,035.61 : x
2. Step 2: Convert to fraction form
   143,091.89/214,848.57 = 80,035.61/x
3. Step 3: Cross multiply
   143,091.89x = 214,848.57 × 80,035.61
4. Step 4: Simplify right side
   143,091.89x = 17,195,535,283.33
5. Step 5: Solve for x
   x = 17,195,535,283.33/143,091.89
6. Step 6: Final answer
   x = 120,171.28