Finding the Fourth Proportional to 13,026.80, 19,538.16 and 3,667.52

Step by Step Solution

1. Step 1: Write the proportion equation
   13,026.80 : 19,538.16 = 3,667.52 : x
2. Step 2: Convert to fraction form
   13,026.80/19,538.16 = 3,667.52/x
3. Step 3: Cross multiply
   13,026.80x = 19,538.16 × 3,667.52
4. Step 4: Simplify right side
   13,026.80x = 71,656,592.56
5. Step 5: Solve for x
   x = 71,656,592.56/13,026.80
6. Step 6: Final answer
   x = 5,500.71