Finding the Fourth Proportional to 12,084,191.15, 18,126,109.23 and 2,986,288.49

Step by Step Solution

1. Step 1: Write the proportion equation
   12,084,191.15 : 18,126,109.23 = 2,986,288.49 : x
2. Step 2: Convert to fraction form
   12,084,191.15/18,126,109.23 = 2,986,288.49/x
3. Step 3: Cross multiply
   12,084,191.15x = 18,126,109.23 × 2,986,288.49
4. Step 4: Simplify right side
   12,084,191.15x = 54,129,791,271,401.22
5. Step 5: Solve for x
   x = 54,129,791,271,401.22/12,084,191.15
6. Step 6: Final answer
   x = 4,479,388.87