Finding the Fourth Proportional to 10,131,676.62, 13,981,442.99 and 5,780,683.86

Step by Step Solution

1. Step 1: Write the proportion equation
   10,131,676.62 : 13,981,442.99 = 5,780,683.86 : x
2. Step 2: Convert to fraction form
   10,131,676.62/13,981,442.99 = 5,780,683.86/x
3. Step 3: Cross multiply
   10,131,676.62x = 13,981,442.99 × 5,780,683.86
4. Step 4: Simplify right side
   10,131,676.62x = 80,822,301,802,899.72
5. Step 5: Solve for x
   x = 80,822,301,802,899.72/10,131,676.62
6. Step 6: Final answer
   x = 7,977,189.25