Finding the Fourth Proportional to 21,381,002.22, 29,508,977.79 and 16,831,558.38

Step by Step Solution

1. Step 1: Write the proportion equation
   21,381,002.22 : 29,508,977.79 = 16,831,558.38 : x
2. Step 2: Convert to fraction form
   21,381,002.22/29,508,977.79 = 16,831,558.38/x
3. Step 3: Cross multiply
   21,381,002.22x = 29,508,977.79 × 16,831,558.38
4. Step 4: Simplify right side
   21,381,002.22x = 496,682,082,406,508.31
5. Step 5: Solve for x
   x = 496,682,082,406,508.31/21,381,002.22
6. Step 6: Final answer
   x = 23,230,065.52