Finding the Fourth Proportional to 23,985,434, 33,099,900.18 and 12,972,180.62

Step by Step Solution

1. Step 1: Write the proportion equation
   23,985,434 : 33,099,900.18 = 12,972,180.62 : x
2. Step 2: Convert to fraction form
   23,985,434/33,099,900.18 = 12,972,180.62/x
3. Step 3: Cross multiply
   23,985,434x = 33,099,900.18 × 12,972,180.62
4. Step 4: Simplify right side
   23,985,434x = 429,377,883,638,930.50
5. Step 5: Solve for x
   x = 429,377,883,638,930.50/23,985,434
6. Step 6: Final answer
   x = 17,901,609.94