Finding the Fourth Proportional to 15,061.43, 20,784.81 and 8,347.16

Step by Step Solution

1. Step 1: Write the proportion equation
   15,061.43 : 20,784.81 = 8,347.16 : x
2. Step 2: Convert to fraction form
   15,061.43/20,784.81 = 8,347.16/x
3. Step 3: Cross multiply
   15,061.43x = 20,784.81 × 8,347.16
4. Step 4: Simplify right side
   15,061.43x = 173,494,186.60
5. Step 5: Solve for x
   x = 173,494,186.60/15,061.43
6. Step 6: Final answer
   x = 11,519.11