Finding the Fourth Proportional to 279,426, 419,178.42 and 89,822.82

Step by Step Solution

1. Step 1: Write the proportion equation
   279,426 : 419,178.42 = 89,822.82 : x
2. Step 2: Convert to fraction form
   279,426/419,178.42 = 89,822.82/x
3. Step 3: Cross multiply
   279,426x = 419,178.42 × 89,822.82
4. Step 4: Simplify right side
   279,426x = 37,651,787,767.54
5. Step 5: Solve for x
   x = 37,651,787,767.54/279,426
6. Step 6: Final answer
   x = 134,746.90