Finding the Fourth Proportional to 30,473.63, 42,049.81 and 17,042.72

Step by Step Solution

1. Step 1: Write the proportion equation
   30,473.63 : 42,049.81 = 17,042.72 : x
2. Step 2: Convert to fraction form
   30,473.63/42,049.81 = 17,042.72/x
3. Step 3: Cross multiply
   30,473.63x = 42,049.81 × 17,042.72
4. Step 4: Simplify right side
   30,473.63x = 716,642,948.94
5. Step 5: Solve for x
   x = 716,642,948.94/30,473.63
6. Step 6: Final answer
   x = 23,516.82