Finding the Fourth Proportional to 2,912,660.99, 4,021,196.34 and 2,589,478.43

Step by Step Solution

1. Step 1: Write the proportion equation
   2,912,660.99 : 4,021,196.34 = 2,589,478.43 : x
2. Step 2: Convert to fraction form
   2,912,660.99/4,021,196.34 = 2,589,478.43/x
3. Step 3: Cross multiply
   2,912,660.99x = 4,021,196.34 × 2,589,478.43
4. Step 4: Simplify right side
   2,912,660.99x = 10,412,801,174,829.51
5. Step 5: Solve for x
   x = 10,412,801,174,829.51/2,912,660.99
6. Step 6: Final answer
   x = 3,575,013.10