Finding the Fourth Proportional to 39,084,012, 53,942,404.96 and 21,685,962.24

Step by Step Solution

1. Step 1: Write the proportion equation
   39,084,012 : 53,942,404.96 = 21,685,962.24 : x
2. Step 2: Convert to fraction form
   39,084,012/53,942,404.96 = 21,685,962.24/x
3. Step 3: Cross multiply
   39,084,012x = 53,942,404.96 × 21,685,962.24
4. Step 4: Simplify right side
   39,084,012x = 1,169,792,957,097,348.75
5. Step 5: Solve for x
   x = 1,169,792,957,097,348.75/39,084,012
6. Step 6: Final answer
   x = 29,930,216.92