Finding the Fourth Proportional to 19,667.61, 29,506.88 and 8,575.27

Step by Step Solution

1. Step 1: Write the proportion equation
   19,667.61 : 29,506.88 = 8,575.27 : x
2. Step 2: Convert to fraction form
   19,667.61/29,506.88 = 8,575.27/x
3. Step 3: Cross multiply
   19,667.61x = 29,506.88 × 8,575.27
4. Step 4: Simplify right side
   19,667.61x = 253,029,410.53
5. Step 5: Solve for x
   x = 253,029,410.53/19,667.61
6. Step 6: Final answer
   x = 12,865.29