Finding the Fourth Proportional to 30,590.90, 42,215.54 and 17,162.17

Step by Step Solution

1. Step 1: Write the proportion equation
   30,590.90 : 42,215.54 = 17,162.17 : x
2. Step 2: Convert to fraction form
   30,590.90/42,215.54 = 17,162.17/x
3. Step 3: Cross multiply
   30,590.90x = 42,215.54 × 17,162.17
4. Step 4: Simplify right side
   30,590.90x = 724,510,274.12
5. Step 5: Solve for x
   x = 724,510,274.12/30,590.90
6. Step 6: Final answer
   x = 23,683.85