Finding the Fourth Proportional to 171,468.82, 257,109.27 and 53,107.30

Step by Step Solution

1. Step 1: Write the proportion equation
   171,468.82 : 257,109.27 = 53,107.30 : x
2. Step 2: Convert to fraction form
   171,468.82/257,109.27 = 53,107.30/x
3. Step 3: Cross multiply
   171,468.82x = 257,109.27 × 53,107.30
4. Step 4: Simplify right side
   171,468.82x = 13,654,379,134.67
5. Step 5: Solve for x
   x = 13,654,379,134.67/171,468.82
6. Step 6: Final answer
   x = 79,631.85