Finding the Fourth Proportional to 171,695.37, 257,507.98 and 65,042.55

Step by Step Solution

1. Step 1: Write the proportion equation
   171,695.37 : 257,507.98 = 65,042.55 : x
2. Step 2: Convert to fraction form
   171,695.37/257,507.98 = 65,042.55/x
3. Step 3: Cross multiply
   171,695.37x = 257,507.98 × 65,042.55
4. Step 4: Simplify right side
   171,695.37x = 16,748,975,664.55
5. Step 5: Solve for x
   x = 16,748,975,664.55/171,695.37
6. Step 6: Final answer
   x = 97,550.54