Finding the Fourth Proportional to 16,749.90, 23,115.48 and 9,196.16

Step by Step Solution

1. Step 1: Write the proportion equation
   16,749.90 : 23,115.48 = 9,196.16 : x
2. Step 2: Convert to fraction form
   16,749.90/23,115.48 = 9,196.16/x
3. Step 3: Cross multiply
   16,749.90x = 23,115.48 × 9,196.16
4. Step 4: Simplify right side
   16,749.90x = 212,573,742.88
5. Step 5: Solve for x
   x = 212,573,742.88/16,749.90
6. Step 6: Final answer
   x = 12,691.05