Finding the Fourth Proportional to 30,467.72, 42,042.56 and 17,037.12

Step by Step Solution

1. Step 1: Write the proportion equation
   30,467.72 : 42,042.56 = 17,037.12 : x
2. Step 2: Convert to fraction form
   30,467.72/42,042.56 = 17,037.12/x
3. Step 3: Cross multiply
   30,467.72x = 42,042.56 × 17,037.12
4. Step 4: Simplify right side
   30,467.72x = 716,284,139.83
5. Step 5: Solve for x
   x = 716,284,139.83/30,467.72
6. Step 6: Final answer
   x = 23,509.61