Finding the Fourth Proportional to 89,423.62, 123,404.55 and 49,137.32

Step by Step Solution

1. Step 1: Write the proportion equation
   89,423.62 : 123,404.55 = 49,137.32 : x
2. Step 2: Convert to fraction form
   89,423.62/123,404.55 = 49,137.32/x
3. Step 3: Cross multiply
   89,423.62x = 123,404.55 × 49,137.32
4. Step 4: Simplify right side
   89,423.62x = 6,063,768,862.81
5. Step 5: Solve for x
   x = 6,063,768,862.81/89,423.62
6. Step 6: Final answer
   x = 67,809.48