Finding the Fourth Proportional to 3,978,308.93, 5,971,636.91 and 3,525,794.93

Step by Step Solution

1. Step 1: Write the proportion equation
   3,978,308.93 : 5,971,636.91 = 3,525,794.93 : x
2. Step 2: Convert to fraction form
   3,978,308.93/5,971,636.91 = 3,525,794.93/x
3. Step 3: Cross multiply
   3,978,308.93x = 5,971,636.91 × 3,525,794.93
4. Step 4: Simplify right side
   3,978,308.93x = 21,054,767,093,591.71
5. Step 5: Solve for x
   x = 21,054,767,093,591.71/3,978,308.93
6. Step 6: Final answer
   x = 5,292,391.19