Finding the Fourth Proportional to 13,112.35, 19,665.21 and 3,752.43

Step by Step Solution

1. Step 1: Write the proportion equation
   13,112.35 : 19,665.21 = 3,752.43 : x
2. Step 2: Convert to fraction form
   13,112.35/19,665.21 = 3,752.43/x
3. Step 3: Cross multiply
   13,112.35x = 19,665.21 × 3,752.43
4. Step 4: Simplify right side
   13,112.35x = 73,792,264.29
5. Step 5: Solve for x
   x = 73,792,264.29/13,112.35
6. Step 6: Final answer
   x = 5,627.69