Finding the Fourth Proportional to 37,856.56, 56,712.06 and 21,165.97

Step by Step Solution

1. Step 1: Write the proportion equation
   37,856.56 : 56,712.06 = 21,165.97 : x
2. Step 2: Convert to fraction form
   37,856.56/56,712.06 = 21,165.97/x
3. Step 3: Cross multiply
   37,856.56x = 56,712.06 × 21,165.97
4. Step 4: Simplify right side
   37,856.56x = 1,200,365,760.60
5. Step 5: Solve for x
   x = 1,200,365,760.60/37,856.56
6. Step 6: Final answer
   x = 31,708.26