Finding the Fourth Proportional to 43,072,665.54, 64,555,115.46 and 21,513,285.15

Step by Step Solution

1. Step 1: Write the proportion equation
   43,072,665.54 : 64,555,115.46 = 21,513,285.15 : x
2. Step 2: Convert to fraction form
   43,072,665.54/64,555,115.46 = 21,513,285.15/x
3. Step 3: Cross multiply
   43,072,665.54x = 64,555,115.46 × 21,513,285.15
4. Step 4: Simplify right side
   43,072,665.54x = 1,388,792,606,782,153.25
5. Step 5: Solve for x
   x = 1,388,792,606,782,153.25/43,072,665.54
6. Step 6: Final answer
   x = 32,243,015.13