Finding the Fourth Proportional to 49,554.76, 68,397.72 and 30,439.12

Step by Step Solution

1. Step 1: Write the proportion equation
   49,554.76 : 68,397.72 = 30,439.12 : x
2. Step 2: Convert to fraction form
   49,554.76/68,397.72 = 30,439.12/x
3. Step 3: Cross multiply
   49,554.76x = 68,397.72 × 30,439.12
4. Step 4: Simplify right side
   49,554.76x = 2,081,966,406.81
5. Step 5: Solve for x
   x = 2,081,966,406.81/49,554.76
6. Step 6: Final answer
   x = 42,013.45