Finding the Fourth Proportional to 9,139,313.25, 12,613,605.93 and 5,786,791.18

Step by Step Solution

1. Step 1: Write the proportion equation
   9,139,313.25 : 12,613,605.93 = 5,786,791.18 : x
2. Step 2: Convert to fraction form
   9,139,313.25/12,613,605.93 = 5,786,791.18/x
3. Step 3: Cross multiply
   9,139,313.25x = 12,613,605.93 × 5,786,791.18
4. Step 4: Simplify right side
   9,139,313.25x = 72,992,303,543,719.69
5. Step 5: Solve for x
   x = 72,992,303,543,719.69/9,139,313.25
6. Step 6: Final answer
   x = 7,986,628.92