Finding the Fourth Proportional to 60,429.59, 90,613.25 and 27,121.10

Step by Step Solution

1. Step 1: Write the proportion equation
   60,429.59 : 90,613.25 = 27,121.10 : x
2. Step 2: Convert to fraction form
   60,429.59/90,613.25 = 27,121.10/x
3. Step 3: Cross multiply
   60,429.59x = 90,613.25 × 27,121.10
4. Step 4: Simplify right side
   60,429.59x = 2,457,530,425.90
5. Step 5: Solve for x
   x = 2,457,530,425.90/60,429.59
6. Step 6: Final answer
   x = 40,667.67