Finding the Fourth Proportional to 37,775.22, 52,131.57 and 21,856.59

Step by Step Solution

1. Step 1: Write the proportion equation
   37,775.22 : 52,131.57 = 21,856.59 : x
2. Step 2: Convert to fraction form
   37,775.22/52,131.57 = 21,856.59/x
3. Step 3: Cross multiply
   37,775.22x = 52,131.57 × 21,856.59
4. Step 4: Simplify right side
   37,775.22x = 1,139,418,269.58
5. Step 5: Solve for x
   x = 1,139,418,269.58/37,775.22
6. Step 6: Final answer
   x = 30,163.12