Finding the Fourth Proportional to 14,321.07, 19,758.33 and 8,657.55

Step by Step Solution

1. Step 1: Write the proportion equation
   14,321.07 : 19,758.33 = 8,657.55 : x
2. Step 2: Convert to fraction form
   14,321.07/19,758.33 = 8,657.55/x
3. Step 3: Cross multiply
   14,321.07x = 19,758.33 × 8,657.55
4. Step 4: Simplify right side
   14,321.07x = 171,058,729.89
5. Step 5: Solve for x
   x = 171,058,729.89/14,321.07
6. Step 6: Final answer
   x = 11,944.55