Finding the Fourth Proportional to 12,019.82, 16,587.52 and 6,642.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,019.82 : 16,587.52 = 6,642.50 : x
2. Step 2: Convert to fraction form
   12,019.82/16,587.52 = 6,642.50/x
3. Step 3: Cross multiply
   12,019.82x = 16,587.52 × 6,642.50
4. Step 4: Simplify right side
   12,019.82x = 110,182,601.60
5. Step 5: Solve for x
   x = 110,182,601.60/12,019.82
6. Step 6: Final answer
   x = 9,166.74