Finding the Fourth Proportional to 12,554.06, 17,307.27 and 12,165.86

Step by Step Solution

1. Step 1: Write the proportion equation
   12,554.06 : 17,307.27 = 12,165.86 : x
2. Step 2: Convert to fraction form
   12,554.06/17,307.27 = 12,165.86/x
3. Step 3: Cross multiply
   12,554.06x = 17,307.27 × 12,165.86
4. Step 4: Simplify right side
   12,554.06x = 210,557,867.07
5. Step 5: Solve for x
   x = 210,557,867.07/12,554.06
6. Step 6: Final answer
   x = 16,772.10