Finding the Fourth Proportional to 21,988,408.14, 30,343,991.47 and 12,065,355.98

Step by Step Solution

1. Step 1: Write the proportion equation
   21,988,408.14 : 30,343,991.47 = 12,065,355.98 : x
2. Step 2: Convert to fraction form
   21,988,408.14/30,343,991.47 = 12,065,355.98/x
3. Step 3: Cross multiply
   21,988,408.14x = 30,343,991.47 × 12,065,355.98
4. Step 4: Simplify right side
   21,988,408.14x = 366,111,058,939,633.50
5. Step 5: Solve for x
   x = 366,111,058,939,633.50/21,988,408.14
6. Step 6: Final answer
   x = 16,650,184.80