Finding the Fourth Proportional to 30,434.81, 42,002.34 and 17,518.10

Step by Step Solution

1. Step 1: Write the proportion equation
   30,434.81 : 42,002.34 = 17,518.10 : x
2. Step 2: Convert to fraction form
   30,434.81/42,002.34 = 17,518.10/x
3. Step 3: Cross multiply
   30,434.81x = 42,002.34 × 17,518.10
4. Step 4: Simplify right side
   30,434.81x = 735,801,192.35
5. Step 5: Solve for x
   x = 735,801,192.35/30,434.81
6. Step 6: Final answer
   x = 24,176.30