Finding the Fourth Proportional to 49,245.72, 67,969.98 and 30,129.72

Step by Step Solution

1. Step 1: Write the proportion equation
   49,245.72 : 67,969.98 = 30,129.72 : x
2. Step 2: Convert to fraction form
   49,245.72/67,969.98 = 30,129.72/x
3. Step 3: Cross multiply
   49,245.72x = 67,969.98 × 30,129.72
4. Step 4: Simplify right side
   49,245.72x = 2,047,916,465.81
5. Step 5: Solve for x
   x = 2,047,916,465.81/49,245.72
6. Step 6: Final answer
   x = 41,585.67