Finding the Fourth Proportional to 30,891.79, 42,630.86 and 17,464.35

Step by Step Solution

1. Step 1: Write the proportion equation
   30,891.79 : 42,630.86 = 17,464.35 : x
2. Step 2: Convert to fraction form
   30,891.79/42,630.86 = 17,464.35/x
3. Step 3: Cross multiply
   30,891.79x = 42,630.86 × 17,464.35
4. Step 4: Simplify right side
   30,891.79x = 744,520,303.50
5. Step 5: Solve for x
   x = 744,520,303.50/30,891.79
6. Step 6: Final answer
   x = 24,100.91