Finding the Fourth Proportional to 37,956.57, 52,380.06 and 21,189.57

Step by Step Solution

1. Step 1: Write the proportion equation
   37,956.57 : 52,380.06 = 21,189.57 : x
2. Step 2: Convert to fraction form
   37,956.57/52,380.06 = 21,189.57/x
3. Step 3: Cross multiply
   37,956.57x = 52,380.06 × 21,189.57
4. Step 4: Simplify right side
   37,956.57x = 1,109,910,947.97
5. Step 5: Solve for x
   x = 1,109,910,947.97/37,956.57
6. Step 6: Final answer
   x = 29,241.60