Finding the Fourth Proportional to 172,443.53, 258,665.39 and 47,784.53

Step by Step Solution

1. Step 1: Write the proportion equation
   172,443.53 : 258,665.39 = 47,784.53 : x
2. Step 2: Convert to fraction form
   172,443.53/258,665.39 = 47,784.53/x
3. Step 3: Cross multiply
   172,443.53x = 258,665.39 × 47,784.53
4. Step 4: Simplify right side
   172,443.53x = 12,360,204,088.42
5. Step 5: Solve for x
   x = 12,360,204,088.42/172,443.53
6. Step 6: Final answer
   x = 71,676.82