Finding the Fourth Proportional to 12,172,663.98, 16,794,466.83 and 7,015,320.54

Step by Step Solution

1. Step 1: Write the proportion equation
   12,172,663.98 : 16,794,466.83 = 7,015,320.54 : x
2. Step 2: Convert to fraction form
   12,172,663.98/16,794,466.83 = 7,015,320.54/x
3. Step 3: Cross multiply
   12,172,663.98x = 16,794,466.83 × 7,015,320.54
4. Step 4: Simplify right side
   12,172,663.98x = 117,818,568,110,847.67
5. Step 5: Solve for x
   x = 117,818,568,110,847.67/12,172,663.98
6. Step 6: Final answer
   x = 9,678,946.88