Finding the Fourth Proportional to 123,613.92, 185,358.72 and 60,438.72

Step by Step Solution

1. Step 1: Write the proportion equation
   123,613.92 : 185,358.72 = 60,438.72 : x
2. Step 2: Convert to fraction form
   123,613.92/185,358.72 = 60,438.72/x
3. Step 3: Cross multiply
   123,613.92x = 185,358.72 × 60,438.72
4. Step 4: Simplify right side
   123,613.92x = 11,202,843,777.64
5. Step 5: Solve for x
   x = 11,202,843,777.64/123,613.92
6. Step 6: Final answer
   x = 90,627.69