Finding the Fourth Proportional to 30,917.16, 42,665.69 and 17,488.13

Step by Step Solution

1. Step 1: Write the proportion equation
   30,917.16 : 42,665.69 = 17,488.13 : x
2. Step 2: Convert to fraction form
   30,917.16/42,665.69 = 17,488.13/x
3. Step 3: Cross multiply
   30,917.16x = 42,665.69 × 17,488.13
4. Step 4: Simplify right side
   30,917.16x = 746,142,832.49
5. Step 5: Solve for x
   x = 746,142,832.49/30,917.16
6. Step 6: Final answer
   x = 24,133.61