Finding the Fourth Proportional to 37,647.55, 56,453.16 and 21,856.56

Step by Step Solution

1. Step 1: Write the proportion equation
   37,647.55 : 56,453.16 = 21,856.56 : x
2. Step 2: Convert to fraction form
   37,647.55/56,453.16 = 21,856.56/x
3. Step 3: Cross multiply
   37,647.55x = 56,453.16 × 21,856.56
4. Step 4: Simplify right side
   37,647.55x = 1,233,871,487.18
5. Step 5: Solve for x
   x = 1,233,871,487.18/37,647.55
6. Step 6: Final answer
   x = 32,774.28