Finding the Fourth Proportional to 31,291.35, 43,196.04 and 19,975.83

Step by Step Solution

1. Step 1: Write the proportion equation
   31,291.35 : 43,196.04 = 19,975.83 : x
2. Step 2: Convert to fraction form
   31,291.35/43,196.04 = 19,975.83/x
3. Step 3: Cross multiply
   31,291.35x = 43,196.04 × 19,975.83
4. Step 4: Simplify right side
   31,291.35x = 862,876,751.71
5. Step 5: Solve for x
   x = 862,876,751.71/31,291.35
6. Step 6: Final answer
   x = 27,575.57