Finding the Fourth Proportional to 42,993.56, 64,485.76 and 26,324.56

Step by Step Solution

1. Step 1: Write the proportion equation
   42,993.56 : 64,485.76 = 26,324.56 : x
2. Step 2: Convert to fraction form
   42,993.56/64,485.76 = 26,324.56/x
3. Step 3: Cross multiply
   42,993.56x = 64,485.76 × 26,324.56
4. Step 4: Simplify right side
   42,993.56x = 1,697,559,258.27
5. Step 5: Solve for x
   x = 1,697,559,258.27/42,993.56
6. Step 6: Final answer
   x = 39,484.04