Finding the Fourth Proportional to 21,927,105.72, 30,259,039.32 and 12,137,339.76

Step by Step Solution

1. Step 1: Write the proportion equation
   21,927,105.72 : 30,259,039.32 = 12,137,339.76 : x
2. Step 2: Convert to fraction form
   21,927,105.72/30,259,039.32 = 12,137,339.76/x
3. Step 3: Cross multiply
   21,927,105.72x = 30,259,039.32 × 12,137,339.76
4. Step 4: Simplify right side
   21,927,105.72x = 367,264,241,038,039.38
5. Step 5: Solve for x
   x = 367,264,241,038,039.38/21,927,105.72
6. Step 6: Final answer
   x = 16,749,325.96