Finding the Fourth Proportional to 21,253,886.27, 29,339,412.89 and 14,288,603.61

Step by Step Solution

1. Step 1: Write the proportion equation
   21,253,886.27 : 29,339,412.89 = 14,288,603.61 : x
2. Step 2: Convert to fraction form
   21,253,886.27/29,339,412.89 = 14,288,603.61/x
3. Step 3: Cross multiply
   21,253,886.27x = 29,339,412.89 × 14,288,603.61
4. Step 4: Simplify right side
   21,253,886.27x = 419,219,241,054,287.69
5. Step 5: Solve for x
   x = 419,219,241,054,287.69/21,253,886.27
6. Step 6: Final answer
   x = 19,724,357.03