Finding the Fourth Proportional to 22,296,109.52, 30,768,609.48 and 12,638,317.52

Step by Step Solution

1. Step 1: Write the proportion equation
   22,296,109.52 : 30,768,609.48 = 12,638,317.52 : x
2. Step 2: Convert to fraction form
   22,296,109.52/30,768,609.48 = 12,638,317.52/x
3. Step 3: Cross multiply
   22,296,109.52x = 30,768,609.48 × 12,638,317.52
4. Step 4: Simplify right side
   22,296,109.52x = 388,863,456,257,122.06
5. Step 5: Solve for x
   x = 388,863,456,257,122.06/22,296,109.52
6. Step 6: Final answer
   x = 17,440,865.90