Finding the Fourth Proportional to 10,607.74, 14,621.97 and 8,081.86

Step by Step Solution

1. Step 1: Write the proportion equation
   10,607.74 : 14,621.97 = 8,081.86 : x
2. Step 2: Convert to fraction form
   10,607.74/14,621.97 = 8,081.86/x
3. Step 3: Cross multiply
   10,607.74x = 14,621.97 × 8,081.86
4. Step 4: Simplify right side
   10,607.74x = 118,172,714.46
5. Step 5: Solve for x
   x = 118,172,714.46/10,607.74
6. Step 6: Final answer
   x = 11,140.23