Finding the Fourth Proportional to 8,178,938,705.50, 12,251,227,166.54 and 5,189,462,997.56

Step by Step Solution

1. Step 1: Write the proportion equation
   8,178,938,705.50 : 12,251,227,166.54 = 5,189,462,997.56 : x
2. Step 2: Convert to fraction form
   8,178,938,705.50/12,251,227,166.54 = 5,189,462,997.56/x
3. Step 3: Cross multiply
   8,178,938,705.50x = 12,251,227,166.54 × 5,189,462,997.56
4. Step 4: Simplify right side
   8,178,938,705.50x = 63,577,290,055,505,928,192
5. Step 5: Solve for x
   x = 63,577,290,055,505,928,192/8,178,938,705.50
6. Step 6: Final answer
   x = 7,773,293,375.18