Finding the Fourth Proportional to 42,993.27, 64,399.05 and 27,190.17

Step by Step Solution

1. Step 1: Write the proportion equation
   42,993.27 : 64,399.05 = 27,190.17 : x
2. Step 2: Convert to fraction form
   42,993.27/64,399.05 = 27,190.17/x
3. Step 3: Cross multiply
   42,993.27x = 64,399.05 × 27,190.17
4. Step 4: Simplify right side
   42,993.27x = 1,751,021,117.34
5. Step 5: Solve for x
   x = 1,751,021,117.34/42,993.27
6. Step 6: Final answer
   x = 40,727.80