Finding the Fourth Proportional to 30,876,456.48, 42,614,610.48 and 17,129,849.28

Step by Step Solution

1. Step 1: Write the proportion equation
   30,876,456.48 : 42,614,610.48 = 17,129,849.28 : x
2. Step 2: Convert to fraction form
   30,876,456.48/42,614,610.48 = 17,129,849.28/x
3. Step 3: Cross multiply
   30,876,456.48x = 42,614,610.48 × 17,129,849.28
4. Step 4: Simplify right side
   30,876,456.48x = 729,981,854,648,308.50
5. Step 5: Solve for x
   x = 729,981,854,648,308.50/30,876,456.48
6. Step 6: Final answer
   x = 23,642,021.72