Finding the Fourth Proportional to 89,619.62, 123,670.83 and 49,332.55

Step by Step Solution

1. Step 1: Write the proportion equation
   89,619.62 : 123,670.83 = 49,332.55 : x
2. Step 2: Convert to fraction form
   89,619.62/123,670.83 = 49,332.55/x
3. Step 3: Cross multiply
   89,619.62x = 123,670.83 × 49,332.55
4. Step 4: Simplify right side
   89,619.62x = 6,100,997,404.52
5. Step 5: Solve for x
   x = 6,100,997,404.52/89,619.62
6. Step 6: Final answer
   x = 68,076.58