Finding the Fourth Proportional to 89,426.17, 123,408.06 and 49,142.53

Step by Step Solution

1. Step 1: Write the proportion equation
   89,426.17 : 123,408.06 = 49,142.53 : x
2. Step 2: Convert to fraction form
   89,426.17/123,408.06 = 49,142.53/x
3. Step 3: Cross multiply
   89,426.17x = 123,408.06 × 49,142.53
4. Step 4: Simplify right side
   89,426.17x = 6,064,584,290.79
5. Step 5: Solve for x
   x = 6,064,584,290.79/89,426.17
6. Step 6: Final answer
   x = 67,816.66