Finding the Fourth Proportional to 21,928,938.50, 30,262,174.62 and 12,139,546.34

Step by Step Solution

1. Step 1: Write the proportion equation
   21,928,938.50 : 30,262,174.62 = 12,139,546.34 : x
2. Step 2: Convert to fraction form
   21,928,938.50/30,262,174.62 = 12,139,546.34/x
3. Step 3: Cross multiply
   21,928,938.50x = 30,262,174.62 × 12,139,546.34
4. Step 4: Simplify right side
   21,928,938.50x = 367,369,071,148,661.88
5. Step 5: Solve for x
   x = 367,369,071,148,661.88/21,928,938.50
6. Step 6: Final answer
   x = 16,752,706.53