Finding the Fourth Proportional to 21,382,559.37, 29,508,554.29 and 12,089,929.83

Step by Step Solution

1. Step 1: Write the proportion equation
   21,382,559.37 : 29,508,554.29 = 12,089,929.83 : x
2. Step 2: Convert to fraction form
   21,382,559.37/29,508,554.29 = 12,089,929.83/x
3. Step 3: Cross multiply
   21,382,559.37x = 29,508,554.29 × 12,089,929.83
4. Step 4: Simplify right side
   21,382,559.37x = 356,756,350,632,632.19
5. Step 5: Solve for x
   x = 356,756,350,632,632.19/21,382,559.37
6. Step 6: Final answer
   x = 16,684,455.05