Finding the Fourth Proportional to 17,371.69, 26,056.84 and 12,091.45

Step by Step Solution

1. Step 1: Write the proportion equation
   17,371.69 : 26,056.84 = 12,091.45 : x
2. Step 2: Convert to fraction form
   17,371.69/26,056.84 = 12,091.45/x
3. Step 3: Cross multiply
   17,371.69x = 26,056.84 × 12,091.45
4. Step 4: Simplify right side
   17,371.69x = 315,064,978.02
5. Step 5: Solve for x
   x = 315,064,978.02/17,371.69
6. Step 6: Final answer
   x = 18,136.69