Finding the Fourth Proportional to 23,123,147.85, 31,911,903.59 and 12,813,104.97

Step by Step Solution

1. Step 1: Write the proportion equation
   23,123,147.85 : 31,911,903.59 = 12,813,104.97 : x
2. Step 2: Convert to fraction form
   23,123,147.85/31,911,903.59 = 12,813,104.97/x
3. Step 3: Cross multiply
   23,123,147.85x = 31,911,903.59 × 12,813,104.97
4. Step 4: Simplify right side
   23,123,147.85x = 408,890,570,491,189.88
5. Step 5: Solve for x
   x = 408,890,570,491,189.88/23,123,147.85
6. Step 6: Final answer
   x = 17,683,170.70