Finding the Fourth Proportional to 6,391,386.39, 8,820,399.38 and 3,490,800.69

Step by Step Solution

1. Step 1: Write the proportion equation
   6,391,386.39 : 8,820,399.38 = 3,490,800.69 : x
2. Step 2: Convert to fraction form
   6,391,386.39/8,820,399.38 = 3,490,800.69/x
3. Step 3: Cross multiply
   6,391,386.39x = 8,820,399.38 × 3,490,800.69
4. Step 4: Simplify right side
   6,391,386.39x = 30,790,256,224,325.57
5. Step 5: Solve for x
   x = 30,790,256,224,325.57/6,391,386.39
6. Step 6: Final answer
   x = 4,817,461.24