Finding the Fourth Proportional to 40,175,446.72, 55,439,762.16 and 21,840,571.84

Step by Step Solution

1. Step 1: Write the proportion equation
   40,175,446.72 : 55,439,762.16 = 21,840,571.84 : x
2. Step 2: Convert to fraction form
   40,175,446.72/55,439,762.16 = 21,840,571.84/x
3. Step 3: Cross multiply
   40,175,446.72x = 55,439,762.16 × 21,840,571.84
4. Step 4: Simplify right side
   40,175,446.72x = 1,210,836,108,247,993.50
5. Step 5: Solve for x
   x = 1,210,836,108,247,993.50/40,175,446.72
6. Step 6: Final answer
   x = 30,138,709.26