Finding the Fourth Proportional to 12,796.70, 18,503.37 and 12,796.70

Step by Step Solution

1. Step 1: Write the proportion equation
   12,796.70 : 18,503.37 = 12,796.70 : x
2. Step 2: Convert to fraction form
   12,796.70/18,503.37 = 12,796.70/x
3. Step 3: Cross multiply
   12,796.70x = 18,503.37 × 12,796.70
4. Step 4: Simplify right side
   12,796.70x = 236,782,074.88
5. Step 5: Solve for x
   x = 236,782,074.88/12,796.70
6. Step 6: Final answer
   x = 18,503.37