Finding the Fourth Proportional to 171,499.97, 257,274.86 and 53,180.84

Step by Step Solution

1. Step 1: Write the proportion equation
   171,499.97 : 257,274.86 = 53,180.84 : x
2. Step 2: Convert to fraction form
   171,499.97/257,274.86 = 53,180.84/x
3. Step 3: Cross multiply
   171,499.97x = 257,274.86 × 53,180.84
4. Step 4: Simplify right side
   171,499.97x = 13,682,091,613.40
5. Step 5: Solve for x
   x = 13,682,091,613.40/171,499.97
6. Step 6: Final answer
   x = 79,778.98