Finding the Fourth Proportional to 37,990.05, 52,426.13 and 20,993.82

Step by Step Solution

1. Step 1: Write the proportion equation
   37,990.05 : 52,426.13 = 20,993.82 : x
2. Step 2: Convert to fraction form
   37,990.05/52,426.13 = 20,993.82/x
3. Step 3: Cross multiply
   37,990.05x = 52,426.13 × 20,993.82
4. Step 4: Simplify right side
   37,990.05x = 1,100,624,736.52
5. Step 5: Solve for x
   x = 1,100,624,736.52/37,990.05
6. Step 6: Final answer
   x = 28,971.39