Finding the Fourth Proportional to 55,485, 76,571.19 and 30,336.12

Step by Step Solution

1. Step 1: Write the proportion equation
   55,485 : 76,571.19 = 30,336.12 : x
2. Step 2: Convert to fraction form
   55,485/76,571.19 = 30,336.12/x
3. Step 3: Cross multiply
   55,485x = 76,571.19 × 30,336.12
4. Step 4: Simplify right side
   55,485x = 2,322,872,808.38
5. Step 5: Solve for x
   x = 2,322,872,808.38/55,485
6. Step 6: Final answer
   x = 41,864.88