Finding the Fourth Proportional to 13,753.56, 20,630.43 and 3,365.31

Step by Step Solution

1. Step 1: Write the proportion equation
   13,753.56 : 20,630.43 = 3,365.31 : x
2. Step 2: Convert to fraction form
   13,753.56/20,630.43 = 3,365.31/x
3. Step 3: Cross multiply
   13,753.56x = 20,630.43 × 3,365.31
4. Step 4: Simplify right side
   13,753.56x = 69,427,792.38
5. Step 5: Solve for x
   x = 69,427,792.38/13,753.56
6. Step 6: Final answer
   x = 5,047.99