Finding the Fourth Proportional to 5,274,786.72, 7,915,428.72 and 2,079,369.12

Step by Step Solution

1. Step 1: Write the proportion equation
   5,274,786.72 : 7,915,428.72 = 2,079,369.12 : x
2. Step 2: Convert to fraction form
   5,274,786.72/7,915,428.72 = 2,079,369.12/x
3. Step 3: Cross multiply
   5,274,786.72x = 7,915,428.72 × 2,079,369.12
4. Step 4: Simplify right side
   5,274,786.72x = 16,459,098,051,929.13
5. Step 5: Solve for x
   x = 16,459,098,051,929.13/5,274,786.72
6. Step 6: Final answer
   x = 3,120,334.32