Finding the Fourth Proportional to 55,978.12, 83,985 and 16,535.44

Step by Step Solution

1. Step 1: Write the proportion equation
   55,978.12 : 83,985 = 16,535.44 : x
2. Step 2: Convert to fraction form
   55,978.12/83,985 = 16,535.44/x
3. Step 3: Cross multiply
   55,978.12x = 83,985 × 16,535.44
4. Step 4: Simplify right side
   55,978.12x = 1,388,728,928.40
5. Step 5: Solve for x
   x = 1,388,728,928.40/55,978.12
6. Step 6: Final answer
   x = 24,808.42