Finding the Fourth Proportional to 15,498.72, 23,242.45 and 8,483.91

Step by Step Solution

1. Step 1: Write the proportion equation
   15,498.72 : 23,242.45 = 8,483.91 : x
2. Step 2: Convert to fraction form
   15,498.72/23,242.45 = 8,483.91/x
3. Step 3: Cross multiply
   15,498.72x = 23,242.45 × 8,483.91
4. Step 4: Simplify right side
   15,498.72x = 197,186,853.98
5. Step 5: Solve for x
   x = 197,186,853.98/15,498.72
6. Step 6: Final answer
   x = 12,722.78