Finding the Fourth Proportional to 49,268.72, 67,989.70 and 30,147.05

Step by Step Solution

1. Step 1: Write the proportion equation
   49,268.72 : 67,989.70 = 30,147.05 : x
2. Step 2: Convert to fraction form
   49,268.72/67,989.70 = 30,147.05/x
3. Step 3: Cross multiply
   49,268.72x = 67,989.70 × 30,147.05
4. Step 4: Simplify right side
   49,268.72x = 2,049,688,885.39
5. Step 5: Solve for x
   x = 2,049,688,885.39/49,268.72
6. Step 6: Final answer
   x = 41,602.24