Finding the Fourth Proportional to 171,055.30, 256,194.15 and 87,852.10

Step by Step Solution

1. Step 1: Write the proportion equation
   171,055.30 : 256,194.15 = 87,852.10 : x
2. Step 2: Convert to fraction form
   171,055.30/256,194.15 = 87,852.10/x
3. Step 3: Cross multiply
   171,055.30x = 256,194.15 × 87,852.10
4. Step 4: Simplify right side
   171,055.30x = 22,507,194,085.22
5. Step 5: Solve for x
   x = 22,507,194,085.22/171,055.30
6. Step 6: Final answer
   x = 131,578.47