Finding the Fourth Proportional to 31,826.72, 43,900.66 and 19,556.75

Step by Step Solution

1. Step 1: Write the proportion equation
   31,826.72 : 43,900.66 = 19,556.75 : x
2. Step 2: Convert to fraction form
   31,826.72/43,900.66 = 19,556.75/x
3. Step 3: Cross multiply
   31,826.72x = 43,900.66 × 19,556.75
4. Step 4: Simplify right side
   31,826.72x = 858,554,232.46
5. Step 5: Solve for x
   x = 858,554,232.46/31,826.72
6. Step 6: Final answer
   x = 26,975.89