Finding the Fourth Proportional to 112,716.72, 155,522.37 and 66,753.15

Step by Step Solution

1. Step 1: Write the proportion equation
   112,716.72 : 155,522.37 = 66,753.15 : x
2. Step 2: Convert to fraction form
   112,716.72/155,522.37 = 66,753.15/x
3. Step 3: Cross multiply
   112,716.72x = 155,522.37 × 66,753.15
4. Step 4: Simplify right side
   112,716.72x = 10,381,608,092.97
5. Step 5: Solve for x
   x = 10,381,608,092.97/112,716.72
6. Step 6: Final answer
   x = 92,103.53