Finding the Fourth Proportional to 123,417.20, 185,082.60 and 64,233.20

Step by Step Solution

1. Step 1: Write the proportion equation
   123,417.20 : 185,082.60 = 64,233.20 : x
2. Step 2: Convert to fraction form
   123,417.20/185,082.60 = 64,233.20/x
3. Step 3: Cross multiply
   123,417.20x = 185,082.60 × 64,233.20
4. Step 4: Simplify right side
   123,417.20x = 11,888,447,662.32
5. Step 5: Solve for x
   x = 11,888,447,662.32/123,417.20
6. Step 6: Final answer
   x = 96,327.32