Finding the Fourth Proportional to 55,591.50, 76,728.18 and 35,443.74

Step by Step Solution

1. Step 1: Write the proportion equation
   55,591.50 : 76,728.18 = 35,443.74 : x
2. Step 2: Convert to fraction form
   55,591.50/76,728.18 = 35,443.74/x
3. Step 3: Cross multiply
   55,591.50x = 76,728.18 × 35,443.74
4. Step 4: Simplify right side
   55,591.50x = 2,719,533,662.59
5. Step 5: Solve for x
   x = 2,719,533,662.59/55,591.50
6. Step 6: Final answer
   x = 48,919.95