Finding the Fourth Proportional to 12,986,243.82, 17,916,664.56 and 7,479,508.38

Step by Step Solution

1. Step 1: Write the proportion equation
   12,986,243.82 : 17,916,664.56 = 7,479,508.38 : x
2. Step 2: Convert to fraction form
   12,986,243.82/17,916,664.56 = 7,479,508.38/x
3. Step 3: Cross multiply
   12,986,243.82x = 17,916,664.56 × 7,479,508.38
4. Step 4: Simplify right side
   12,986,243.82x = 134,007,842,718,169
5. Step 5: Solve for x
   x = 134,007,842,718,169/12,986,243.82
6. Step 6: Final answer
   x = 10,319,215.05