Finding the Fourth Proportional to 55,659.44, 76,815.58 and 31,789.72

Step by Step Solution

1. Step 1: Write the proportion equation
   55,659.44 : 76,815.58 = 31,789.72 : x
2. Step 2: Convert to fraction form
   55,659.44/76,815.58 = 31,789.72/x
3. Step 3: Cross multiply
   55,659.44x = 76,815.58 × 31,789.72
4. Step 4: Simplify right side
   55,659.44x = 2,441,945,779.84
5. Step 5: Solve for x
   x = 2,441,945,779.84/55,659.44
6. Step 6: Final answer
   x = 43,872.99