Finding the Fourth Proportional to 13,209.87, 19,817.52 and 4,444.56

Step by Step Solution

1. Step 1: Write the proportion equation
   13,209.87 : 19,817.52 = 4,444.56 : x
2. Step 2: Convert to fraction form
   13,209.87/19,817.52 = 4,444.56/x
3. Step 3: Cross multiply
   13,209.87x = 19,817.52 × 4,444.56
4. Step 4: Simplify right side
   13,209.87x = 88,080,156.69
5. Step 5: Solve for x
   x = 88,080,156.69/13,209.87
6. Step 6: Final answer
   x = 6,667.75