Finding the Fourth Proportional to 37,996.84, 52,435.78 and 21,230.12

Step by Step Solution

1. Step 1: Write the proportion equation
   37,996.84 : 52,435.78 = 21,230.12 : x
2. Step 2: Convert to fraction form
   37,996.84/52,435.78 = 21,230.12/x
3. Step 3: Cross multiply
   37,996.84x = 52,435.78 × 21,230.12
4. Step 4: Simplify right side
   37,996.84x = 1,113,217,901.69
5. Step 5: Solve for x
   x = 1,113,217,901.69/37,996.84
6. Step 6: Final answer
   x = 29,297.64