Finding the Fourth Proportional to 12,357,375.30, 18,498,738.15 and 10,864,383.30

Step by Step Solution

1. Step 1: Write the proportion equation
   12,357,375.30 : 18,498,738.15 = 10,864,383.30 : x
2. Step 2: Convert to fraction form
   12,357,375.30/18,498,738.15 = 10,864,383.30/x
3. Step 3: Cross multiply
   12,357,375.30x = 18,498,738.15 × 10,864,383.30
4. Step 4: Simplify right side
   12,357,375.30x = 200,977,381,827,932.91
5. Step 5: Solve for x
   x = 200,977,381,827,932.91/12,357,375.30
6. Step 6: Final answer
   x = 16,263,759.65