Finding the Fourth Proportional to 12,429,057,401.67, 18,655,372,836.51 and 7,693,053,325.23

Step by Step Solution

1. Step 1: Write the proportion equation
   12,429,057,401.67 : 18,655,372,836.51 = 7,693,053,325.23 : x
2. Step 2: Convert to fraction form
   12,429,057,401.67/18,655,372,836.51 = 7,693,053,325.23/x
3. Step 3: Cross multiply
   12,429,057,401.67x = 18,655,372,836.51 × 7,693,053,325.23
4. Step 4: Simplify right side
   12,429,057,401.67x = 143,516,778,033,318,658,048
5. Step 5: Solve for x
   x = 143,516,778,033,318,658,048/12,429,057,401.67
6. Step 6: Final answer
   x = 11,546,875,470.54