Finding the Fourth Proportional to 21,787,016.76, 30,065,426.00 and 11,997,513.69

Step by Step Solution

1. Step 1: Write the proportion equation
   21,787,016.76 : 30,065,426.00 = 11,997,513.69 : x
2. Step 2: Convert to fraction form
   21,787,016.76/30,065,426.00 = 11,997,513.69/x
3. Step 3: Cross multiply
   21,787,016.76x = 30,065,426.00 × 11,997,513.69
4. Step 4: Simplify right side
   21,787,016.76x = 360,710,359,970,694.38
5. Step 5: Solve for x
   x = 360,710,359,970,694.38/21,787,016.76
6. Step 6: Final answer
   x = 16,556,207.03