Finding the Fourth Proportional to 21,928,936.50, 30,262,171.86 and 12,139,544.34

Step by Step Solution

1. Step 1: Write the proportion equation
   21,928,936.50 : 30,262,171.86 = 12,139,544.34 : x
2. Step 2: Convert to fraction form
   21,928,936.50/30,262,171.86 = 12,139,544.34/x
3. Step 3: Cross multiply
   21,928,936.50x = 30,262,171.86 × 12,139,544.34
4. Step 4: Simplify right side
   21,928,936.50x = 367,368,977,119,170.25
5. Step 5: Solve for x
   x = 367,368,977,119,170.25/21,928,936.50
6. Step 6: Final answer
   x = 16,752,703.77