Finding the Fourth Proportional to 12,996.57, 19,492.83 and 4,231.43

Step by Step Solution

1. Step 1: Write the proportion equation
   12,996.57 : 19,492.83 = 4,231.43 : x
2. Step 2: Convert to fraction form
   12,996.57/19,492.83 = 4,231.43/x
3. Step 3: Cross multiply
   12,996.57x = 19,492.83 × 4,231.43
4. Step 4: Simplify right side
   12,996.57x = 82,482,448.18
5. Step 5: Solve for x
   x = 82,482,448.18/12,996.57
6. Step 6: Final answer
   x = 6,346.48