Finding the Fourth Proportional to 123,060.30, 184,536.45 and 56,478.30

Step by Step Solution

1. Step 1: Write the proportion equation
   123,060.30 : 184,536.45 = 56,478.30 : x
2. Step 2: Convert to fraction form
   123,060.30/184,536.45 = 56,478.30/x
3. Step 3: Cross multiply
   123,060.30x = 184,536.45 × 56,478.30
4. Step 4: Simplify right side
   123,060.30x = 10,422,304,984.04
5. Step 5: Solve for x
   x = 10,422,304,984.04/123,060.30
6. Step 6: Final answer
   x = 84,692.67