Finding the Fourth Proportional to 12,019.72, 16,590.16 and 7,307.94

Step by Step Solution

1. Step 1: Write the proportion equation
   12,019.72 : 16,590.16 = 7,307.94 : x
2. Step 2: Convert to fraction form
   12,019.72/16,590.16 = 7,307.94/x
3. Step 3: Cross multiply
   12,019.72x = 16,590.16 × 7,307.94
4. Step 4: Simplify right side
   12,019.72x = 121,239,893.87
5. Step 5: Solve for x
   x = 121,239,893.87/12,019.72
6. Step 6: Final answer
   x = 10,086.75