Finding the Fourth Proportional to 21,928,003.67, 30,260,277.60 and 12,138,238.37

Step by Step Solution

1. Step 1: Write the proportion equation
   21,928,003.67 : 30,260,277.60 = 12,138,238.37 : x
2. Step 2: Convert to fraction form
   21,928,003.67/30,260,277.60 = 12,138,238.37/x
3. Step 3: Cross multiply
   21,928,003.67x = 30,260,277.60 × 12,138,238.37
4. Step 4: Simplify right side
   21,928,003.67x = 367,306,462,651,171.50
5. Step 5: Solve for x
   x = 367,306,462,651,171.50/21,928,003.67
6. Step 6: Final answer
   x = 16,750,565.54