Finding the Fourth Proportional to 8,780.58, 13,168.71 and 2,624.58

Step by Step Solution

1. Step 1: Write the proportion equation
   8,780.58 : 13,168.71 = 2,624.58 : x
2. Step 2: Convert to fraction form
   8,780.58/13,168.71 = 2,624.58/x
3. Step 3: Cross multiply
   8,780.58x = 13,168.71 × 2,624.58
4. Step 4: Simplify right side
   8,780.58x = 34,562,332.89
5. Step 5: Solve for x
   x = 34,562,332.89/8,780.58
6. Step 6: Final answer
   x = 3,936.22