Finding the Fourth Proportional to 12,109,290,784.59, 18,163,418,691.43 and 4,142,171,433.08

Step by Step Solution

1. Step 1: Write the proportion equation
   12,109,290,784.59 : 18,163,418,691.43 = 4,142,171,433.08 : x
2. Step 2: Convert to fraction form
   12,109,290,784.59/18,163,418,691.43 = 4,142,171,433.08/x
3. Step 3: Cross multiply
   12,109,290,784.59x = 18,163,418,691.43 × 4,142,171,433.08
4. Step 4: Simplify right side
   12,109,290,784.59x = 75,235,994,030,658,682,880
5. Step 5: Solve for x
   x = 75,235,994,030,658,682,880/12,109,290,784.59
6. Step 6: Final answer
   x = 6,213,080,135.66