Finding the Fourth Proportional to 13,209.77, 19,817.69 and 4,444.46

Step by Step Solution

1. Step 1: Write the proportion equation
   13,209.77 : 19,817.69 = 4,444.46 : x
2. Step 2: Convert to fraction form
   13,209.77/19,817.69 = 4,444.46/x
3. Step 3: Cross multiply
   13,209.77x = 19,817.69 × 4,444.46
4. Step 4: Simplify right side
   13,209.77x = 88,078,809.19
5. Step 5: Solve for x
   x = 88,078,809.19/13,209.77
6. Step 6: Final answer
   x = 6,667.70