Finding the Fourth Proportional to 16,670.44, 23,005.82 and 9,116.32

Step by Step Solution

1. Step 1: Write the proportion equation
   16,670.44 : 23,005.82 = 9,116.32 : x
2. Step 2: Convert to fraction form
   16,670.44/23,005.82 = 9,116.32/x
3. Step 3: Cross multiply
   16,670.44x = 23,005.82 × 9,116.32
4. Step 4: Simplify right side
   16,670.44x = 209,728,256.37
5. Step 5: Solve for x
   x = 209,728,256.37/16,670.44
6. Step 6: Final answer
   x = 12,580.85