Finding the Fourth Proportional to 22,143,378.99, 30,557,882.17 and 12,353,825.21

Step by Step Solution

1. Step 1: Write the proportion equation
   22,143,378.99 : 30,557,882.17 = 12,353,825.21 : x
2. Step 2: Convert to fraction form
   22,143,378.99/30,557,882.17 = 12,353,825.21/x
3. Step 3: Cross multiply
   22,143,378.99x = 30,557,882.17 × 12,353,825.21
4. Step 4: Simplify right side
   22,143,378.99x = 377,506,734,978,608.38
5. Step 5: Solve for x
   x = 377,506,734,978,608.38/22,143,378.99
6. Step 6: Final answer
   x = 17,048,289.47