Finding the Fourth Proportional to 5,187,751,105.34, 7,159,099,903.32 and 2,808,890,654.15

Step by Step Solution

1. Step 1: Write the proportion equation
   5,187,751,105.34 : 7,159,099,903.32 = 2,808,890,654.15 : x
2. Step 2: Convert to fraction form
   5,187,751,105.34/7,159,099,903.32 = 2,808,890,654.15/x
3. Step 3: Cross multiply
   5,187,751,105.34x = 7,159,099,903.32 × 2,808,890,654.15
4. Step 4: Simplify right side
   5,187,751,105.34x = 20,109,128,810,549,198,848
5. Step 5: Solve for x
   x = 20,109,128,810,549,198,848/5,187,751,105.34
6. Step 6: Final answer
   x = 3,876,270,931.70