Finding the Fourth Proportional to 11,950.62, 16,498.71 and 7,978.46

Step by Step Solution

1. Step 1: Write the proportion equation
   11,950.62 : 16,498.71 = 7,978.46 : x
2. Step 2: Convert to fraction form
   11,950.62/16,498.71 = 7,978.46/x
3. Step 3: Cross multiply
   11,950.62x = 16,498.71 × 7,978.46
4. Step 4: Simplify right side
   11,950.62x = 131,634,297.79
5. Step 5: Solve for x
   x = 131,634,297.79/11,950.62
6. Step 6: Final answer
   x = 11,014.85