Finding the Fourth Proportional to 12,692.69, 19,043.55 and 5,672.06

Step by Step Solution

1. Step 1: Write the proportion equation
   12,692.69 : 19,043.55 = 5,672.06 : x
2. Step 2: Convert to fraction form
   12,692.69/19,043.55 = 5,672.06/x
3. Step 3: Cross multiply
   12,692.69x = 19,043.55 × 5,672.06
4. Step 4: Simplify right side
   12,692.69x = 108,016,158.21
5. Step 5: Solve for x
   x = 108,016,158.21/12,692.69
6. Step 6: Final answer
   x = 8,510.11