Finding the Fourth Proportional to 14,164,649,664.72, 21,155,139,289.92 and 12,834,019,154.88

Step by Step Solution

1. Step 1: Write the proportion equation
   14,164,649,664.72 : 21,155,139,289.92 = 12,834,019,154.88 : x
2. Step 2: Convert to fraction form
   14,164,649,664.72/21,155,139,289.92 = 12,834,019,154.88/x
3. Step 3: Cross multiply
   14,164,649,664.72x = 21,155,139,289.92 × 12,834,019,154.88
4. Step 4: Simplify right side
   14,164,649,664.72x = 271,505,462,870,987,735,040
5. Step 5: Solve for x
   x = 271,505,462,870,987,735,040/14,164,649,664.72
6. Step 6: Final answer
   x = 19,167,820,546.05