Finding the Fourth Proportional to 89,496.42, 123,505.52 and 49,212.79

Step by Step Solution

1. Step 1: Write the proportion equation
   89,496.42 : 123,505.52 = 49,212.79 : x
2. Step 2: Convert to fraction form
   89,496.42/123,505.52 = 49,212.79/x
3. Step 3: Cross multiply
   89,496.42x = 123,505.52 × 49,212.79
4. Step 4: Simplify right side
   89,496.42x = 6,078,051,219.60
5. Step 5: Solve for x
   x = 6,078,051,219.60/89,496.42
6. Step 6: Final answer
   x = 67,913.90