Finding the Fourth Proportional to 30,626.48, 42,231.30 and 26,612.12

Step by Step Solution

1. Step 1: Write the proportion equation
   30,626.48 : 42,231.30 = 26,612.12 : x
2. Step 2: Convert to fraction form
   30,626.48/42,231.30 = 26,612.12/x
3. Step 3: Cross multiply
   30,626.48x = 42,231.30 × 26,612.12
4. Step 4: Simplify right side
   30,626.48x = 1,123,864,423.36
5. Step 5: Solve for x
   x = 1,123,864,423.36/30,626.48
6. Step 6: Final answer
   x = 36,695.84