Finding the Fourth Proportional to 13,614,179.99, 18,787,571.78 and 7,419,228.50

Step by Step Solution

1. Step 1: Write the proportion equation
   13,614,179.99 : 18,787,571.78 = 7,419,228.50 : x
2. Step 2: Convert to fraction form
   13,614,179.99/18,787,571.78 = 7,419,228.50/x
3. Step 3: Cross multiply
   13,614,179.99x = 18,787,571.78 × 7,419,228.50
4. Step 4: Simplify right side
   13,614,179.99x = 139,389,287,864,937.72
5. Step 5: Solve for x
   x = 139,389,287,864,937.72/13,614,179.99
6. Step 6: Final answer
   x = 10,238,537.17