Finding the Fourth Proportional to 13,047.50, 19,574.85 and 3,813.50

Step by Step Solution

1. Step 1: Write the proportion equation
   13,047.50 : 19,574.85 = 3,813.50 : x
2. Step 2: Convert to fraction form
   13,047.50/19,574.85 = 3,813.50/x
3. Step 3: Cross multiply
   13,047.50x = 19,574.85 × 3,813.50
4. Step 4: Simplify right side
   13,047.50x = 74,648,690.48
5. Step 5: Solve for x
   x = 74,648,690.48/13,047.50
6. Step 6: Final answer
   x = 5,721.30