Finding the Fourth Proportional to 31,825.76, 43,900.77 and 19,868.33

Step by Step Solution

1. Step 1: Write the proportion equation
   31,825.76 : 43,900.77 = 19,868.33 : x
2. Step 2: Convert to fraction form
   31,825.76/43,900.77 = 19,868.33/x
3. Step 3: Cross multiply
   31,825.76x = 43,900.77 × 19,868.33
4. Step 4: Simplify right side
   31,825.76x = 872,234,886.27
5. Step 5: Solve for x
   x = 872,234,886.27/31,825.76
6. Step 6: Final answer
   x = 27,406.57