Finding the Fourth Proportional to 16,767, 25,127.10 and 12,602.12

Step by Step Solution

1. Step 1: Write the proportion equation
   16,767 : 25,127.10 = 12,602.12 : x
2. Step 2: Convert to fraction form
   16,767/25,127.10 = 12,602.12/x
3. Step 3: Cross multiply
   16,767x = 25,127.10 × 12,602.12
4. Step 4: Simplify right side
   16,767x = 316,654,603.82
5. Step 5: Solve for x
   x = 316,654,603.82/16,767
6. Step 6: Final answer
   x = 18,885.59