Finding the Fourth Proportional to 37,700.50, 52,022.76 and 21,790.09

Step by Step Solution

1. Step 1: Write the proportion equation
   37,700.50 : 52,022.76 = 21,790.09 : x
2. Step 2: Convert to fraction form
   37,700.50/52,022.76 = 21,790.09/x
3. Step 3: Cross multiply
   37,700.50x = 52,022.76 × 21,790.09
4. Step 4: Simplify right side
   37,700.50x = 1,133,580,622.45
5. Step 5: Solve for x
   x = 1,133,580,622.45/37,700.50
6. Step 6: Final answer
   x = 30,068.05