Finding the Fourth Proportional to 55,689.06, 76,850.79 and 30,538.50

Step by Step Solution

1. Step 1: Write the proportion equation
   55,689.06 : 76,850.79 = 30,538.50 : x
2. Step 2: Convert to fraction form
   55,689.06/76,850.79 = 30,538.50/x
3. Step 3: Cross multiply
   55,689.06x = 76,850.79 × 30,538.50
4. Step 4: Simplify right side
   55,689.06x = 2,346,907,850.42
5. Step 5: Solve for x
   x = 2,346,907,850.42/55,689.06
6. Step 6: Final answer
   x = 42,143.07