Finding the Fourth Proportional to 8,938.53, 12,335.72 and 5,162.39

Step by Step Solution

1. Step 1: Write the proportion equation
   8,938.53 : 12,335.72 = 5,162.39 : x
2. Step 2: Convert to fraction form
   8,938.53/12,335.72 = 5,162.39/x
3. Step 3: Cross multiply
   8,938.53x = 12,335.72 × 5,162.39
4. Step 4: Simplify right side
   8,938.53x = 63,681,710.08
5. Step 5: Solve for x
   x = 63,681,710.08/8,938.53
6. Step 6: Final answer
   x = 7,124.41