Finding the Fourth Proportional to 10,817,991,870.17, 14,942,832,746.51 and 8,945,959,061.21

Step by Step Solution

1. Step 1: Write the proportion equation
   10,817,991,870.17 : 14,942,832,746.51 = 8,945,959,061.21 : x
2. Step 2: Convert to fraction form
   10,817,991,870.17/14,942,832,746.51 = 8,945,959,061.21/x
3. Step 3: Cross multiply
   10,817,991,870.17x = 14,942,832,746.51 × 8,945,959,061.21
4. Step 4: Simplify right side
   10,817,991,870.17x = 133,677,970,008,738,775,040
5. Step 5: Solve for x
   x = 133,677,970,008,738,775,040/10,817,991,870.17
6. Step 6: Final answer
   x = 12,357,004,110.66