Finding the Fourth Proportional to 89,854.43, 123,994.69 and 54,037.49

Step by Step Solution

1. Step 1: Write the proportion equation
   89,854.43 : 123,994.69 = 54,037.49 : x
2. Step 2: Convert to fraction form
   89,854.43/123,994.69 = 54,037.49/x
3. Step 3: Cross multiply
   89,854.43x = 123,994.69 × 54,037.49
4. Step 4: Simplify right side
   89,854.43x = 6,700,361,065.86
5. Step 5: Solve for x
   x = 6,700,361,065.86/89,854.43
6. Step 6: Final answer
   x = 74,569.07