Finding the Fourth Proportional to 11,818.35, 16,315.16 and 8,061.03

Step by Step Solution

1. Step 1: Write the proportion equation
   11,818.35 : 16,315.16 = 8,061.03 : x
2. Step 2: Convert to fraction form
   11,818.35/16,315.16 = 8,061.03/x
3. Step 3: Cross multiply
   11,818.35x = 16,315.16 × 8,061.03
4. Step 4: Simplify right side
   11,818.35x = 131,516,953.91
5. Step 5: Solve for x
   x = 131,516,953.91/11,818.35
6. Step 6: Final answer
   x = 11,128.20