Finding the Fourth Proportional to 21,449,969.24, 29,599,196.46 and 12,628,019.48

Step by Step Solution

1. Step 1: Write the proportion equation
   21,449,969.24 : 29,599,196.46 = 12,628,019.48 : x
2. Step 2: Convert to fraction form
   21,449,969.24/29,599,196.46 = 12,628,019.48/x
3. Step 3: Cross multiply
   21,449,969.24x = 29,599,196.46 × 12,628,019.48
4. Step 4: Simplify right side
   21,449,969.24x = 373,779,229,489,227.06
5. Step 5: Solve for x
   x = 373,779,229,489,227.06/21,449,969.24
6. Step 6: Final answer
   x = 17,425,630.09