Finding the Fourth Proportional to 171,172.50, 256,695.78 and 58,820.82

Step by Step Solution

1. Step 1: Write the proportion equation
   171,172.50 : 256,695.78 = 58,820.82 : x
2. Step 2: Convert to fraction form
   171,172.50/256,695.78 = 58,820.82/x
3. Step 3: Cross multiply
   171,172.50x = 256,695.78 × 58,820.82
4. Step 4: Simplify right side
   171,172.50x = 15,099,056,270.14
5. Step 5: Solve for x
   x = 15,099,056,270.14/171,172.50
6. Step 6: Final answer
   x = 88,209.59