Finding the Fourth Proportional to 3,991,200,433.02, 5,507,892,285.06 and 2,207,173,921.51

Step by Step Solution

1. Step 1: Write the proportion equation
   3,991,200,433.02 : 5,507,892,285.06 = 2,207,173,921.51 : x
2. Step 2: Convert to fraction form
   3,991,200,433.02/5,507,892,285.06 = 2,207,173,921.51/x
3. Step 3: Cross multiply
   3,991,200,433.02x = 5,507,892,285.06 × 2,207,173,921.51
4. Step 4: Simplify right side
   3,991,200,433.02x = 12,156,876,214,069,129,216
5. Step 5: Solve for x
   x = 12,156,876,214,069,129,216/3,991,200,433.02
6. Step 6: Final answer
   x = 3,045,919,747.23