Finding the Fourth Proportional to 10,858,045.39, 16,287,054.31 and 2,771,021.20

Step by Step Solution

1. Step 1: Write the proportion equation
   10,858,045.39 : 16,287,054.31 = 2,771,021.20 : x
2. Step 2: Convert to fraction form
   10,858,045.39/16,287,054.31 = 2,771,021.20/x
3. Step 3: Cross multiply
   10,858,045.39x = 16,287,054.31 × 2,771,021.20
4. Step 4: Simplify right side
   10,858,045.39x = 45,131,772,778,561.38
5. Step 5: Solve for x
   x = 45,131,772,778,561.38/10,858,045.39
6. Step 6: Final answer
   x = 4,156,528.28