Finding the Fourth Proportional to 37,686.72, 52,011.84 and 21,771.84

Step by Step Solution

1. Step 1: Write the proportion equation
   37,686.72 : 52,011.84 = 21,771.84 : x
2. Step 2: Convert to fraction form
   37,686.72/52,011.84 = 21,771.84/x
3. Step 3: Cross multiply
   37,686.72x = 52,011.84 × 21,771.84
4. Step 4: Simplify right side
   37,686.72x = 1,132,393,458.59
5. Step 5: Solve for x
   x = 1,132,393,458.59/37,686.72
6. Step 6: Final answer
   x = 30,047.55