Finding the Fourth Proportional to 6,663,321.15, 9,995,591.69 and 1,870,978.09

Step by Step Solution

1. Step 1: Write the proportion equation
   6,663,321.15 : 9,995,591.69 = 1,870,978.09 : x
2. Step 2: Convert to fraction form
   6,663,321.15/9,995,591.69 = 1,870,978.09/x
3. Step 3: Cross multiply
   6,663,321.15x = 9,995,591.69 × 1,870,978.09
4. Step 4: Simplify right side
   6,663,321.15x = 18,701,533,048,576.07
5. Step 5: Solve for x
   x = 18,701,533,048,576.07/6,663,321.15
6. Step 6: Final answer
   x = 2,806,638.41