Finding the Fourth Proportional to 90,372.96, 124,704.72 and 50,085.60

Step by Step Solution

1. Step 1: Write the proportion equation
   90,372.96 : 124,704.72 = 50,085.60 : x
2. Step 2: Convert to fraction form
   90,372.96/124,704.72 = 50,085.60/x
3. Step 3: Cross multiply
   90,372.96x = 124,704.72 × 50,085.60
4. Step 4: Simplify right side
   90,372.96x = 6,245,910,724.03
5. Step 5: Solve for x
   x = 6,245,910,724.03/90,372.96
6. Step 6: Final answer
   x = 69,112.61