Finding the Fourth Proportional to 12,624.16, 18,938.72 and 3,860.32

Step by Step Solution

1. Step 1: Write the proportion equation
   12,624.16 : 18,938.72 = 3,860.32 : x
2. Step 2: Convert to fraction form
   12,624.16/18,938.72 = 3,860.32/x
3. Step 3: Cross multiply
   12,624.16x = 18,938.72 × 3,860.32
4. Step 4: Simplify right side
   12,624.16x = 73,109,519.59
5. Step 5: Solve for x
   x = 73,109,519.59/12,624.16
6. Step 6: Final answer
   x = 5,791.24