Finding the Fourth Proportional to 171,143.72, 256,501.50 and 82,373.48

Step by Step Solution

1. Step 1: Write the proportion equation
   171,143.72 : 256,501.50 = 82,373.48 : x
2. Step 2: Convert to fraction form
   171,143.72/256,501.50 = 82,373.48/x
3. Step 3: Cross multiply
   171,143.72x = 256,501.50 × 82,373.48
4. Step 4: Simplify right side
   171,143.72x = 21,128,921,180.22
5. Step 5: Solve for x
   x = 21,128,921,180.22/171,143.72
6. Step 6: Final answer
   x = 123,457.18