Finding the Fourth Proportional to 20,544,123,897.86, 30,806,472,876.74 and 7,958,878,258.10

Step by Step Solution

1. Step 1: Write the proportion equation
   20,544,123,897.86 : 30,806,472,876.74 = 7,958,878,258.10 : x
2. Step 2: Convert to fraction form
   20,544,123,897.86/30,806,472,876.74 = 7,958,878,258.10/x
3. Step 3: Cross multiply
   20,544,123,897.86x = 30,806,472,876.74 × 7,958,878,258.10
4. Step 4: Simplify right side
   20,544,123,897.86x = 245,184,967,187,303,202,816
5. Step 5: Solve for x
   x = 245,184,967,187,303,202,816/20,544,123,897.86
6. Step 6: Final answer
   x = 11,934,554,542.52