Finding the Fourth Proportional to 58,556.28, 80,806.50 and 31,698.72

Step by Step Solution

1. Step 1: Write the proportion equation
   58,556.28 : 80,806.50 = 31,698.72 : x
2. Step 2: Convert to fraction form
   58,556.28/80,806.50 = 31,698.72/x
3. Step 3: Cross multiply
   58,556.28x = 80,806.50 × 31,698.72
4. Step 4: Simplify right side
   58,556.28x = 2,561,462,617.68
5. Step 5: Solve for x
   x = 2,561,462,617.68/58,556.28
6. Step 6: Final answer
   x = 43,743.60