Finding the Fourth Proportional to 23,006,781,087.92, 31,749,047,476.80 and 12,845,665,472.12

Step by Step Solution

1. Step 1: Write the proportion equation
   23,006,781,087.92 : 31,749,047,476.80 = 12,845,665,472.12 : x
2. Step 2: Convert to fraction form
   23,006,781,087.92/31,749,047,476.80 = 12,845,665,472.12/x
3. Step 3: Cross multiply
   23,006,781,087.92x = 31,749,047,476.80 × 12,845,665,472.12
4. Step 4: Simplify right side
   23,006,781,087.92x = 407,837,642,945,428,389,888
5. Step 5: Solve for x
   x = 407,837,642,945,428,389,888/23,006,781,087.92
6. Step 6: Final answer
   x = 17,726,845,028.29