Finding the Fourth Proportional to 37,940.58, 52,372.35 and 28,536.30

Step by Step Solution

1. Step 1: Write the proportion equation
   37,940.58 : 52,372.35 = 28,536.30 : x
2. Step 2: Convert to fraction form
   37,940.58/52,372.35 = 28,536.30/x
3. Step 3: Cross multiply
   37,940.58x = 52,372.35 × 28,536.30
4. Step 4: Simplify right side
   37,940.58x = 1,494,513,091.31
5. Step 5: Solve for x
   x = 1,494,513,091.31/37,940.58
6. Step 6: Final answer
   x = 39,390.89