Finding the Fourth Proportional to 10,799,300.20, 16,199,123.10 and 2,821,124.20

Step by Step Solution

1. Step 1: Write the proportion equation
   10,799,300.20 : 16,199,123.10 = 2,821,124.20 : x
2. Step 2: Convert to fraction form
   10,799,300.20/16,199,123.10 = 2,821,124.20/x
3. Step 3: Cross multiply
   10,799,300.20x = 16,199,123.10 × 2,821,124.20
4. Step 4: Simplify right side
   10,799,300.20x = 45,699,738,196,189.02
5. Step 5: Solve for x
   x = 45,699,738,196,189.02/10,799,300.20
6. Step 6: Final answer
   x = 4,231,731.44