Finding the Fourth Proportional to 12,996.03, 19,492.83 and 3,636.90

Step by Step Solution

1. Step 1: Write the proportion equation
   12,996.03 : 19,492.83 = 3,636.90 : x
2. Step 2: Convert to fraction form
   12,996.03/19,492.83 = 3,636.90/x
3. Step 3: Cross multiply
   12,996.03x = 19,492.83 × 3,636.90
4. Step 4: Simplify right side
   12,996.03x = 70,893,473.43
5. Step 5: Solve for x
   x = 70,893,473.43/12,996.03
6. Step 6: Final answer
   x = 5,455.01