Finding the Fourth Proportional to 55,462.30, 83,201.64 and 20,399.38

Step by Step Solution

1. Step 1: Write the proportion equation
   55,462.30 : 83,201.64 = 20,399.38 : x
2. Step 2: Convert to fraction form
   55,462.30/83,201.64 = 20,399.38/x
3. Step 3: Cross multiply
   55,462.30x = 83,201.64 × 20,399.38
4. Step 4: Simplify right side
   55,462.30x = 1,697,261,870.98
5. Step 5: Solve for x
   x = 1,697,261,870.98/55,462.30
6. Step 6: Final answer
   x = 30,602.08