Finding the Fourth Proportional to 15,667.30, 21,619.50 and 8,951.59

Step by Step Solution

1. Step 1: Write the proportion equation
   15,667.30 : 21,619.50 = 8,951.59 : x
2. Step 2: Convert to fraction form
   15,667.30/21,619.50 = 8,951.59/x
3. Step 3: Cross multiply
   15,667.30x = 21,619.50 × 8,951.59
4. Step 4: Simplify right side
   15,667.30x = 193,528,791.91
5. Step 5: Solve for x
   x = 193,528,791.91/15,667.30
6. Step 6: Final answer
   x = 12,352.41