Finding the Fourth Proportional to 42,968,366.37, 64,451,910.42 and 10,620,267.12

Step by Step Solution

1. Step 1: Write the proportion equation
   42,968,366.37 : 64,451,910.42 = 10,620,267.12 : x
2. Step 2: Convert to fraction form
   42,968,366.37/64,451,910.42 = 10,620,267.12/x
3. Step 3: Cross multiply
   42,968,366.37x = 64,451,910.42 × 10,620,267.12
4. Step 4: Simplify right side
   42,968,366.37x = 684,496,505,054,711.38
5. Step 5: Solve for x
   x = 684,496,505,054,711.38/42,968,366.37
6. Step 6: Final answer
   x = 15,930,242.71