Finding the Fourth Proportional to 89,185.88, 123,052.02 and 55,178.03

Step by Step Solution

1. Step 1: Write the proportion equation
   89,185.88 : 123,052.02 = 55,178.03 : x
2. Step 2: Convert to fraction form
   89,185.88/123,052.02 = 55,178.03/x
3. Step 3: Cross multiply
   89,185.88x = 123,052.02 × 55,178.03
4. Step 4: Simplify right side
   89,185.88x = 6,789,768,051.12
5. Step 5: Solve for x
   x = 6,789,768,051.12/89,185.88
6. Step 6: Final answer
   x = 76,130.53