Finding the Fourth Proportional to 123,043.05, 184,420.56 and 56,489.58

Step by Step Solution

1. Step 1: Write the proportion equation
   123,043.05 : 184,420.56 = 56,489.58 : x
2. Step 2: Convert to fraction form
   123,043.05/184,420.56 = 56,489.58/x
3. Step 3: Cross multiply
   123,043.05x = 184,420.56 × 56,489.58
4. Step 4: Simplify right side
   123,043.05x = 10,417,839,977.76
5. Step 5: Solve for x
   x = 10,417,839,977.76/123,043.05
6. Step 6: Final answer
   x = 84,668.25