Finding the Fourth Proportional to 23,123,256.57, 31,907,768.49 and 12,808,052.37

Step by Step Solution

1. Step 1: Write the proportion equation
   23,123,256.57 : 31,907,768.49 = 12,808,052.37 : x
2. Step 2: Convert to fraction form
   23,123,256.57/31,907,768.49 = 12,808,052.37/x
3. Step 3: Cross multiply
   23,123,256.57x = 31,907,768.49 × 12,808,052.37
4. Step 4: Simplify right side
   23,123,256.57x = 408,676,369,829,755.75
5. Step 5: Solve for x
   x = 408,676,369,829,755.75/23,123,256.57
6. Step 6: Final answer
   x = 17,673,824.13