Finding the Fourth Proportional to 37,705.50, 52,038.18 and 21,790.08

Step by Step Solution

1. Step 1: Write the proportion equation
   37,705.50 : 52,038.18 = 21,790.08 : x
2. Step 2: Convert to fraction form
   37,705.50/52,038.18 = 21,790.08/x
3. Step 3: Cross multiply
   37,705.50x = 52,038.18 × 21,790.08
4. Step 4: Simplify right side
   37,705.50x = 1,133,916,105.25
5. Step 5: Solve for x
   x = 1,133,916,105.25/37,705.50
6. Step 6: Final answer
   x = 30,072.96