Finding the Fourth Proportional to 21,171,398.48, 29,205,757.60 and 13,833,521.52

Step by Step Solution

1. Step 1: Write the proportion equation
   21,171,398.48 : 29,205,757.60 = 13,833,521.52 : x
2. Step 2: Convert to fraction form
   21,171,398.48/29,205,757.60 = 13,833,521.52/x
3. Step 3: Cross multiply
   21,171,398.48x = 29,205,757.60 × 13,833,521.52
4. Step 4: Simplify right side
   21,171,398.48x = 404,018,476,267,503.56
5. Step 5: Solve for x
   x = 404,018,476,267,503.56/21,171,398.48
6. Step 6: Final answer
   x = 19,083,221.01