Finding the Fourth Proportional to 37,818.12, 52,185.78 and 21,052.68

Step by Step Solution

1. Step 1: Write the proportion equation
   37,818.12 : 52,185.78 = 21,052.68 : x
2. Step 2: Convert to fraction form
   37,818.12/52,185.78 = 21,052.68/x
3. Step 3: Cross multiply
   37,818.12x = 52,185.78 × 21,052.68
4. Step 4: Simplify right side
   37,818.12x = 1,098,650,526.89
5. Step 5: Solve for x
   x = 1,098,650,526.89/37,818.12
6. Step 6: Final answer
   x = 29,050.90