Finding the Fourth Proportional to 12,936, 19,404.18 and 3,702

Step by Step Solution

1. Step 1: Write the proportion equation
   12,936 : 19,404.18 = 3,702 : x
2. Step 2: Convert to fraction form
   12,936/19,404.18 = 3,702/x
3. Step 3: Cross multiply
   12,936x = 19,404.18 × 3,702
4. Step 4: Simplify right side
   12,936x = 71,834,274.36
5. Step 5: Solve for x
   x = 71,834,274.36/12,936
6. Step 6: Final answer
   x = 5,553.05