Finding the Fourth Proportional to 171,404.02, 257,271.87 and 82,719.95

Step by Step Solution

1. Step 1: Write the proportion equation
   171,404.02 : 257,271.87 = 82,719.95 : x
2. Step 2: Convert to fraction form
   171,404.02/257,271.87 = 82,719.95/x
3. Step 3: Cross multiply
   171,404.02x = 257,271.87 × 82,719.95
4. Step 4: Simplify right side
   171,404.02x = 21,281,516,222.81
5. Step 5: Solve for x
   x = 21,281,516,222.81/171,404.02
6. Step 6: Final answer
   x = 124,159.96