Finding the Fourth Proportional to 12,111.53, 16,714.59 and 8,071.34

Step by Step Solution

1. Step 1: Write the proportion equation
   12,111.53 : 16,714.59 = 8,071.34 : x
2. Step 2: Convert to fraction form
   12,111.53/16,714.59 = 8,071.34/x
3. Step 3: Cross multiply
   12,111.53x = 16,714.59 × 8,071.34
4. Step 4: Simplify right side
   12,111.53x = 134,909,055.28
5. Step 5: Solve for x
   x = 134,909,055.28/12,111.53
6. Step 6: Final answer
   x = 11,138.90