Finding the Fourth Proportional to 42,715,743.36, 64,072,936.32 and 10,367,913.60

Step by Step Solution

1. Step 1: Write the proportion equation
   42,715,743.36 : 64,072,936.32 = 10,367,913.60 : x
2. Step 2: Convert to fraction form
   42,715,743.36/64,072,936.32 = 10,367,913.60/x
3. Step 3: Cross multiply
   42,715,743.36x = 64,072,936.32 × 10,367,913.60
4. Step 4: Simplify right side
   42,715,743.36x = 664,302,667,864,061.88
5. Step 5: Solve for x
   x = 664,302,667,864,061.88/42,715,743.36
6. Step 6: Final answer
   x = 15,551,705.66