Finding the Fourth Proportional to 37,715.27, 56,596.71 and 21,086.21

Step by Step Solution

1. Step 1: Write the proportion equation
   37,715.27 : 56,596.71 = 21,086.21 : x
2. Step 2: Convert to fraction form
   37,715.27/56,596.71 = 21,086.21/x
3. Step 3: Cross multiply
   37,715.27x = 56,596.71 × 21,086.21
4. Step 4: Simplify right side
   37,715.27x = 1,193,409,829.39
5. Step 5: Solve for x
   x = 1,193,409,829.39/37,715.27
6. Step 6: Final answer
   x = 31,642.62