Finding the Fourth Proportional to 89,613.38, 123,651.98 and 51,365.88

Step by Step Solution

1. Step 1: Write the proportion equation
   89,613.38 : 123,651.98 = 51,365.88 : x
2. Step 2: Convert to fraction form
   89,613.38/123,651.98 = 51,365.88/x
3. Step 3: Cross multiply
   89,613.38x = 123,651.98 × 51,365.88
4. Step 4: Simplify right side
   89,613.38x = 6,351,492,894.86
5. Step 5: Solve for x
   x = 6,351,492,894.86/89,613.38
6. Step 6: Final answer
   x = 70,876.62