Finding the Fourth Proportional to 123,499.92, 185,318.56 and 60,320.96

Step by Step Solution

1. Step 1: Write the proportion equation
   123,499.92 : 185,318.56 = 60,320.96 : x
2. Step 2: Convert to fraction form
   123,499.92/185,318.56 = 60,320.96/x
3. Step 3: Cross multiply
   123,499.92x = 185,318.56 × 60,320.96
4. Step 4: Simplify right side
   123,499.92x = 11,178,593,445.02
5. Step 5: Solve for x
   x = 11,178,593,445.02/123,499.92
6. Step 6: Final answer
   x = 90,514.99