Finding the Fourth Proportional to 55,635.84, 76,777.29 and 30,485.34

Step by Step Solution

1. Step 1: Write the proportion equation
   55,635.84 : 76,777.29 = 30,485.34 : x
2. Step 2: Convert to fraction form
   55,635.84/76,777.29 = 30,485.34/x
3. Step 3: Cross multiply
   55,635.84x = 76,777.29 × 30,485.34
4. Step 4: Simplify right side
   55,635.84x = 2,340,581,789.93
5. Step 5: Solve for x
   x = 2,340,581,789.93/55,635.84
6. Step 6: Final answer
   x = 42,069.68