Finding the Fourth Proportional to 171,601.89, 256,997.86 and 87,152.56

Step by Step Solution

1. Step 1: Write the proportion equation
   171,601.89 : 256,997.86 = 87,152.56 : x
2. Step 2: Convert to fraction form
   171,601.89/256,997.86 = 87,152.56/x
3. Step 3: Cross multiply
   171,601.89x = 256,997.86 × 87,152.56
4. Step 4: Simplify right side
   171,601.89x = 22,398,021,043.38
5. Step 5: Solve for x
   x = 22,398,021,043.38/171,601.89
6. Step 6: Final answer
   x = 130,523.16