Finding the Fourth Proportional to 12,491,982,796.80, 18,737,284,475.18 and 9,133,994,900.10

Step by Step Solution

1. Step 1: Write the proportion equation
   12,491,982,796.80 : 18,737,284,475.18 = 9,133,994,900.10 : x
2. Step 2: Convert to fraction form
   12,491,982,796.80/18,737,284,475.18 = 9,133,994,900.10/x
3. Step 3: Cross multiply
   12,491,982,796.80x = 18,737,284,475.18 × 9,133,994,900.10
4. Step 4: Simplify right side
   12,491,982,796.80x = 171,146,260,838,017,040,384
5. Step 5: Solve for x
   x = 171,146,260,838,017,040,384/12,491,982,796.80
6. Step 6: Final answer
   x = 13,700,488,034.76