Finding the Fourth Proportional to 279,758.43, 419,761.71 and 146,607.05

Step by Step Solution

1. Step 1: Write the proportion equation
   279,758.43 : 419,761.71 = 146,607.05 : x
2. Step 2: Convert to fraction form
   279,758.43/419,761.71 = 146,607.05/x
3. Step 3: Cross multiply
   279,758.43x = 419,761.71 × 146,607.05
4. Step 4: Simplify right side
   279,758.43x = 61,540,027,055.46
5. Step 5: Solve for x
   x = 61,540,027,055.46/279,758.43
6. Step 6: Final answer
   x = 219,975.59