Finding the Fourth Proportional to 12,978,447,382.30, 19,467,458,332.86 and 4,135,166,105.44

Step by Step Solution

1. Step 1: Write the proportion equation
   12,978,447,382.30 : 19,467,458,332.86 = 4,135,166,105.44 : x
2. Step 2: Convert to fraction form
   12,978,447,382.30/19,467,458,332.86 = 4,135,166,105.44/x
3. Step 3: Cross multiply
   12,978,447,382.30x = 19,467,458,332.86 × 4,135,166,105.44
4. Step 4: Simplify right side
   12,978,447,382.30x = 80,501,173,857,108,164,608
5. Step 5: Solve for x
   x = 80,501,173,857,108,164,608/12,978,447,382.30
6. Step 6: Final answer
   x = 6,202,681,375.19