Finding the Fourth Proportional to 37,945.18, 52,366.06 and 21,817.72

Step by Step Solution

1. Step 1: Write the proportion equation
   37,945.18 : 52,366.06 = 21,817.72 : x
2. Step 2: Convert to fraction form
   37,945.18/52,366.06 = 21,817.72/x
3. Step 3: Cross multiply
   37,945.18x = 52,366.06 × 21,817.72
4. Step 4: Simplify right side
   37,945.18x = 1,142,508,034.58
5. Step 5: Solve for x
   x = 1,142,508,034.58/37,945.18
6. Step 6: Final answer
   x = 30,109.44