Finding the Fourth Proportional to 13,055.68, 19,581 and 3,693.43

Step by Step Solution

1. Step 1: Write the proportion equation
   13,055.68 : 19,581 = 3,693.43 : x
2. Step 2: Convert to fraction form
   13,055.68/19,581 = 3,693.43/x
3. Step 3: Cross multiply
   13,055.68x = 19,581 × 3,693.43
4. Step 4: Simplify right side
   13,055.68x = 72,321,052.83
5. Step 5: Solve for x
   x = 72,321,052.83/13,055.68
6. Step 6: Final answer
   x = 5,539.43