Finding the Fourth Proportional to 37,171.86, 55,684.89 and 21,556.68

Step by Step Solution

1. Step 1: Write the proportion equation
   37,171.86 : 55,684.89 = 21,556.68 : x
2. Step 2: Convert to fraction form
   37,171.86/55,684.89 = 21,556.68/x
3. Step 3: Cross multiply
   37,171.86x = 55,684.89 × 21,556.68
4. Step 4: Simplify right side
   37,171.86x = 1,200,381,354.57
5. Step 5: Solve for x
   x = 1,200,381,354.57/37,171.86
6. Step 6: Final answer
   x = 32,292.74