Finding the Fourth Proportional to 6,443,830.81, 8,892,805.74 and 3,997,230.15

Step by Step Solution

1. Step 1: Write the proportion equation
   6,443,830.81 : 8,892,805.74 = 3,997,230.15 : x
2. Step 2: Convert to fraction form
   6,443,830.81/8,892,805.74 = 3,997,230.15/x
3. Step 3: Cross multiply
   6,443,830.81x = 8,892,805.74 × 3,997,230.15
4. Step 4: Simplify right side
   6,443,830.81x = 35,546,591,173,683.43
5. Step 5: Solve for x
   x = 35,546,591,173,683.43/6,443,830.81
6. Step 6: Final answer
   x = 5,516,375.62