Finding the Fourth Proportional to 172,672.50, 259,023.42 and 48,013.50

Step by Step Solution

1. Step 1: Write the proportion equation
   172,672.50 : 259,023.42 = 48,013.50 : x
2. Step 2: Convert to fraction form
   172,672.50/259,023.42 = 48,013.50/x
3. Step 3: Cross multiply
   172,672.50x = 259,023.42 × 48,013.50
4. Step 4: Simplify right side
   172,672.50x = 12,436,620,976.17
5. Step 5: Solve for x
   x = 12,436,620,976.17/172,672.50
6. Step 6: Final answer
   x = 72,024.33