Finding the Fourth Proportional to 37,908.92, 52,323.90 and 21,991.34

Step by Step Solution

1. Step 1: Write the proportion equation
   37,908.92 : 52,323.90 = 21,991.34 : x
2. Step 2: Convert to fraction form
   37,908.92/52,323.90 = 21,991.34/x
3. Step 3: Cross multiply
   37,908.92x = 52,323.90 × 21,991.34
4. Step 4: Simplify right side
   37,908.92x = 1,150,672,675.03
5. Step 5: Solve for x
   x = 1,150,672,675.03/37,908.92
6. Step 6: Final answer
   x = 30,353.61