Finding the Fourth Proportional to 12,238,159.74, 16,888,978.89 and 6,731,676.42

Step by Step Solution

1. Step 1: Write the proportion equation
   12,238,159.74 : 16,888,978.89 = 6,731,676.42 : x
2. Step 2: Convert to fraction form
   12,238,159.74/16,888,978.89 = 6,731,676.42/x
3. Step 3: Cross multiply
   12,238,159.74x = 16,888,978.89 × 6,731,676.42
4. Step 4: Simplify right side
   12,238,159.74x = 113,691,140,951,690.78
5. Step 5: Solve for x
   x = 113,691,140,951,690.78/12,238,159.74
6. Step 6: Final answer
   x = 9,289,888.62