Finding the Fourth Proportional to 37,513.05, 51,766.09 and 20,513.99

Step by Step Solution

1. Step 1: Write the proportion equation
   37,513.05 : 51,766.09 = 20,513.99 : x
2. Step 2: Convert to fraction form
   37,513.05/51,766.09 = 20,513.99/x
3. Step 3: Cross multiply
   37,513.05x = 51,766.09 × 20,513.99
4. Step 4: Simplify right side
   37,513.05x = 1,061,929,052.60
5. Step 5: Solve for x
   x = 1,061,929,052.60/37,513.05
6. Step 6: Final answer
   x = 28,308.26