Finding the Fourth Proportional to 131,411.89, 181,355.12 and 80,408.62

Step by Step Solution

1. Step 1: Write the proportion equation
   131,411.89 : 181,355.12 = 80,408.62 : x
2. Step 2: Convert to fraction form
   131,411.89/181,355.12 = 80,408.62/x
3. Step 3: Cross multiply
   131,411.89x = 181,355.12 × 80,408.62
4. Step 4: Simplify right side
   131,411.89x = 14,582,515,055.32
5. Step 5: Solve for x
   x = 14,582,515,055.32/131,411.89
6. Step 6: Final answer
   x = 110,968.00