Finding the Fourth Proportional to 23,171,288,231.98, 31,979,747,237.79 and 13,011,156,678.70

Step by Step Solution

1. Step 1: Write the proportion equation
   23,171,288,231.98 : 31,979,747,237.79 = 13,011,156,678.70 : x
2. Step 2: Convert to fraction form
   23,171,288,231.98/31,979,747,237.79 = 13,011,156,678.70/x
3. Step 3: Cross multiply
   23,171,288,231.98x = 31,979,747,237.79 × 13,011,156,678.70
4. Step 4: Simplify right side
   23,171,288,231.98x = 416,093,501,856,109,297,664
5. Step 5: Solve for x
   x = 416,093,501,856,109,297,664/23,171,288,231.98
6. Step 6: Final answer
   x = 17,957,288,247.87