Finding the Fourth Proportional to 12,624.35, 18,935.83 and 3,858.57

Step by Step Solution

1. Step 1: Write the proportion equation
   12,624.35 : 18,935.83 = 3,858.57 : x
2. Step 2: Convert to fraction form
   12,624.35/18,935.83 = 3,858.57/x
3. Step 3: Cross multiply
   12,624.35x = 18,935.83 × 3,858.57
4. Step 4: Simplify right side
   12,624.35x = 73,065,225.56
5. Step 5: Solve for x
   x = 73,065,225.56/12,624.35
6. Step 6: Final answer
   x = 5,787.64