Finding the Fourth Proportional to 89,142.63, 123,017.74 and 48,855.49

Step by Step Solution

1. Step 1: Write the proportion equation
   89,142.63 : 123,017.74 = 48,855.49 : x
2. Step 2: Convert to fraction form
   89,142.63/123,017.74 = 48,855.49/x
3. Step 3: Cross multiply
   89,142.63x = 123,017.74 × 48,855.49
4. Step 4: Simplify right side
   89,142.63x = 6,010,091,536.71
5. Step 5: Solve for x
   x = 6,010,091,536.71/89,142.63
6. Step 6: Final answer
   x = 67,421.07