Finding the Fourth Proportional to 31,665.60, 43,698.96 and 19,733.76

Step by Step Solution

1. Step 1: Write the proportion equation
   31,665.60 : 43,698.96 = 19,733.76 : x
2. Step 2: Convert to fraction form
   31,665.60/43,698.96 = 19,733.76/x
3. Step 3: Cross multiply
   31,665.60x = 43,698.96 × 19,733.76
4. Step 4: Simplify right side
   31,665.60x = 862,344,788.89
5. Step 5: Solve for x
   x = 862,344,788.89/31,665.60
6. Step 6: Final answer
   x = 27,232.86