Finding the Fourth Proportional to 13,047.53, 19,567.33 and 3,686.81

Step by Step Solution

1. Step 1: Write the proportion equation
   13,047.53 : 19,567.33 = 3,686.81 : x
2. Step 2: Convert to fraction form
   13,047.53/19,567.33 = 3,686.81/x
3. Step 3: Cross multiply
   13,047.53x = 19,567.33 × 3,686.81
4. Step 4: Simplify right side
   13,047.53x = 72,140,920.86
5. Step 5: Solve for x
   x = 72,140,920.86/13,047.53
6. Step 6: Final answer
   x = 5,529.09