Finding the Fourth Proportional to 31,199.07, 43,074.83 and 27,836.05

Step by Step Solution

1. Step 1: Write the proportion equation
   31,199.07 : 43,074.83 = 27,836.05 : x
2. Step 2: Convert to fraction form
   31,199.07/43,074.83 = 27,836.05/x
3. Step 3: Cross multiply
   31,199.07x = 43,074.83 × 27,836.05
4. Step 4: Simplify right side
   31,199.07x = 1,199,033,229.31
5. Step 5: Solve for x
   x = 1,199,033,229.31/31,199.07
6. Step 6: Final answer
   x = 38,431.70