Finding the Fourth Proportional to 172,507, 258,760.50 and 47,848

Step by Step Solution

1. Step 1: Write the proportion equation
   172,507 : 258,760.50 = 47,848 : x
2. Step 2: Convert to fraction form
   172,507/258,760.50 = 47,848/x
3. Step 3: Cross multiply
   172,507x = 258,760.50 × 47,848
4. Step 4: Simplify right side
   172,507x = 12,381,172,404
5. Step 5: Solve for x
   x = 12,381,172,404/172,507
6. Step 6: Final answer
   x = 71,772