Finding the Fourth Proportional to 171,471.30, 257,466.15 and 132,072.90

Step by Step Solution

1. Step 1: Write the proportion equation
   171,471.30 : 257,466.15 = 132,072.90 : x
2. Step 2: Convert to fraction form
   171,471.30/257,466.15 = 132,072.90/x
3. Step 3: Cross multiply
   171,471.30x = 257,466.15 × 132,072.90
4. Step 4: Simplify right side
   171,471.30x = 34,004,301,082.34
5. Step 5: Solve for x
   x = 34,004,301,082.34/171,471.30
6. Step 6: Final answer
   x = 198,308.99