Finding the Fourth Proportional to 23,120,459.84, 31,905,872.16 and 12,666,393.92

Step by Step Solution

1. Step 1: Write the proportion equation
   23,120,459.84 : 31,905,872.16 = 12,666,393.92 : x
2. Step 2: Convert to fraction form
   23,120,459.84/31,905,872.16 = 12,666,393.92/x
3. Step 3: Cross multiply
   23,120,459.84x = 31,905,872.16 × 12,666,393.92
4. Step 4: Simplify right side
   23,120,459.84x = 404,132,345,139,721.25
5. Step 5: Solve for x
   x = 404,132,345,139,721.25/23,120,459.84
6. Step 6: Final answer
   x = 17,479,425.06