Finding the Fourth Proportional to 9,150.58, 13,725.15 and 2,910.79

Step by Step Solution

1. Step 1: Write the proportion equation
   9,150.58 : 13,725.15 = 2,910.79 : x
2. Step 2: Convert to fraction form
   9,150.58/13,725.15 = 2,910.79/x
3. Step 3: Cross multiply
   9,150.58x = 13,725.15 × 2,910.79
4. Step 4: Simplify right side
   9,150.58x = 39,951,029.37
5. Step 5: Solve for x
   x = 39,951,029.37/9,150.58
6. Step 6: Final answer
   x = 4,365.96