Finding the Fourth Proportional to 171,526.41, 257,152.23 and 81,523.98

Step by Step Solution

1. Step 1: Write the proportion equation
   171,526.41 : 257,152.23 = 81,523.98 : x
2. Step 2: Convert to fraction form
   171,526.41/257,152.23 = 81,523.98/x
3. Step 3: Cross multiply
   171,526.41x = 257,152.23 × 81,523.98
4. Step 4: Simplify right side
   171,526.41x = 20,964,073,255.48
5. Step 5: Solve for x
   x = 20,964,073,255.48/171,526.41
6. Step 6: Final answer
   x = 122,220.67