Finding the Fourth Proportional to 171,536.72, 257,329.98 and 53,217.59

Step by Step Solution

1. Step 1: Write the proportion equation
   171,536.72 : 257,329.98 = 53,217.59 : x
2. Step 2: Convert to fraction form
   171,536.72/257,329.98 = 53,217.59/x
3. Step 3: Cross multiply
   171,536.72x = 257,329.98 × 53,217.59
4. Step 4: Simplify right side
   171,536.72x = 13,694,480,083.70
5. Step 5: Solve for x
   x = 13,694,480,083.70/171,536.72
6. Step 6: Final answer
   x = 79,834.10