Finding the Fourth Proportional to 16,236,072.24, 22,390,323.72 and 9,708,664.56

Step by Step Solution

1. Step 1: Write the proportion equation
   16,236,072.24 : 22,390,323.72 = 9,708,664.56 : x
2. Step 2: Convert to fraction form
   16,236,072.24/22,390,323.72 = 9,708,664.56/x
3. Step 3: Cross multiply
   16,236,072.24x = 22,390,323.72 × 9,708,664.56
4. Step 4: Simplify right side
   16,236,072.24x = 217,380,142,387,291.38
5. Step 5: Solve for x
   x = 217,380,142,387,291.38/16,236,072.24
6. Step 6: Final answer
   x = 13,388,714.90