Finding the Fourth Proportional to 22,296,107.52, 30,768,606.72 and 12,638,315.52

Step by Step Solution

1. Step 1: Write the proportion equation
   22,296,107.52 : 30,768,606.72 = 12,638,315.52 : x
2. Step 2: Convert to fraction form
   22,296,107.52/30,768,606.72 = 12,638,315.52/x
3. Step 3: Cross multiply
   22,296,107.52x = 30,768,606.72 × 12,638,315.52
4. Step 4: Simplify right side
   22,296,107.52x = 388,863,359,838,152.25
5. Step 5: Solve for x
   x = 388,863,359,838,152.25/22,296,107.52
6. Step 6: Final answer
   x = 17,440,863.14