Finding the Fourth Proportional to 20,544,123,897.48, 30,806,472,876.18 and 7,958,878,257.72

Step by Step Solution

1. Step 1: Write the proportion equation
   20,544,123,897.48 : 30,806,472,876.18 = 7,958,878,257.72 : x
2. Step 2: Convert to fraction form
   20,544,123,897.48/30,806,472,876.18 = 7,958,878,257.72/x
3. Step 3: Cross multiply
   20,544,123,897.48x = 30,806,472,876.18 × 7,958,878,257.72
4. Step 4: Simplify right side
   20,544,123,897.48x = 245,184,967,171,239,608,320
5. Step 5: Solve for x
   x = 245,184,967,171,239,608,320/20,544,123,897.48
6. Step 6: Final answer
   x = 11,934,554,541.96