Finding the Fourth Proportional to 15,323.52, 21,142.76 and 8,946.50

Step by Step Solution

1. Step 1: Write the proportion equation
   15,323.52 : 21,142.76 = 8,946.50 : x
2. Step 2: Convert to fraction form
   15,323.52/21,142.76 = 8,946.50/x
3. Step 3: Cross multiply
   15,323.52x = 21,142.76 × 8,946.50
4. Step 4: Simplify right side
   15,323.52x = 189,153,551.89
5. Step 5: Solve for x
   x = 189,153,551.89/15,323.52
6. Step 6: Final answer
   x = 12,344.00