Finding the Fourth Proportional to 16,890,061.67, 23,308,262.79 and 9,155,101.94

Step by Step Solution

1. Step 1: Write the proportion equation
   16,890,061.67 : 23,308,262.79 = 9,155,101.94 : x
2. Step 2: Convert to fraction form
   16,890,061.67/23,308,262.79 = 9,155,101.94/x
3. Step 3: Cross multiply
   16,890,061.67x = 23,308,262.79 × 9,155,101.94
4. Step 4: Simplify right side
   16,890,061.67x = 213,389,521,886,758.78
5. Step 5: Solve for x
   x = 213,389,521,886,758.78/16,890,061.67
6. Step 6: Final answer
   x = 12,634,028.58