Finding the Fourth Proportional to 7,978,820.36, 11,969,912.09 and 2,587,050.50

Step by Step Solution

1. Step 1: Write the proportion equation
   7,978,820.36 : 11,969,912.09 = 2,587,050.50 : x
2. Step 2: Convert to fraction form
   7,978,820.36/11,969,912.09 = 2,587,050.50/x
3. Step 3: Cross multiply
   7,978,820.36x = 11,969,912.09 × 2,587,050.50
4. Step 4: Simplify right side
   7,978,820.36x = 30,966,767,004,008.61
5. Step 5: Solve for x
   x = 30,966,767,004,008.61/7,978,820.36
6. Step 6: Final answer
   x = 3,881,120.97