Finding the Fourth Proportional to 116,172.52, 160,408.38 and 89,272.60

Step by Step Solution

1. Step 1: Write the proportion equation
   116,172.52 : 160,408.38 = 89,272.60 : x
2. Step 2: Convert to fraction form
   116,172.52/160,408.38 = 89,272.60/x
3. Step 3: Cross multiply
   116,172.52x = 160,408.38 × 89,272.60
4. Step 4: Simplify right side
   116,172.52x = 14,320,073,144.39
5. Step 5: Solve for x
   x = 14,320,073,144.39/116,172.52
6. Step 6: Final answer
   x = 123,265.58