Finding the Fourth Proportional to 37,105.02, 51,205.37 and 21,790.55

Step by Step Solution

1. Step 1: Write the proportion equation
   37,105.02 : 51,205.37 = 21,790.55 : x
2. Step 2: Convert to fraction form
   37,105.02/51,205.37 = 21,790.55/x
3. Step 3: Cross multiply
   37,105.02x = 51,205.37 × 21,790.55
4. Step 4: Simplify right side
   37,105.02x = 1,115,793,194.31
5. Step 5: Solve for x
   x = 1,115,793,194.31/37,105.02
6. Step 6: Final answer
   x = 30,071.22