Finding the Fourth Proportional to 16,890,196.68, 23,307,846.98 and 9,155,072.92

Step by Step Solution

1. Step 1: Write the proportion equation
   16,890,196.68 : 23,307,846.98 = 9,155,072.92 : x
2. Step 2: Convert to fraction form
   16,890,196.68/23,307,846.98 = 9,155,072.92/x
3. Step 3: Cross multiply
   16,890,196.68x = 23,307,846.98 × 9,155,072.92
4. Step 4: Simplify right side
   16,890,196.68x = 213,385,038,710,101.78
5. Step 5: Solve for x
   x = 213,385,038,710,101.78/16,890,196.68
6. Step 6: Final answer
   x = 12,633,662.16