Finding the Fourth Proportional to 12,498.44, 18,776.82 and 7,307.96

Step by Step Solution

1. Step 1: Write the proportion equation
   12,498.44 : 18,776.82 = 7,307.96 : x
2. Step 2: Convert to fraction form
   12,498.44/18,776.82 = 7,307.96/x
3. Step 3: Cross multiply
   12,498.44x = 18,776.82 × 7,307.96
4. Step 4: Simplify right side
   12,498.44x = 137,220,249.49
5. Step 5: Solve for x
   x = 137,220,249.49/12,498.44
6. Step 6: Final answer
   x = 10,978.99