Finding the Fourth Proportional to 175,947.72, 263,919.33 and 42,828.09

Step by Step Solution

1. Step 1: Write the proportion equation
   175,947.72 : 263,919.33 = 42,828.09 : x
2. Step 2: Convert to fraction form
   175,947.72/263,919.33 = 42,828.09/x
3. Step 3: Cross multiply
   175,947.72x = 263,919.33 × 42,828.09
4. Step 4: Simplify right side
   175,947.72x = 11,303,160,817.98
5. Step 5: Solve for x
   x = 11,303,160,817.98/175,947.72
6. Step 6: Final answer
   x = 64,241.59