Finding the Fourth Proportional to 30,911.34, 42,659.76 and 17,482.60

Step by Step Solution

1. Step 1: Write the proportion equation
   30,911.34 : 42,659.76 = 17,482.60 : x
2. Step 2: Convert to fraction form
   30,911.34/42,659.76 = 17,482.60/x
3. Step 3: Cross multiply
   30,911.34x = 42,659.76 × 17,482.60
4. Step 4: Simplify right side
   30,911.34x = 745,803,520.18
5. Step 5: Solve for x
   x = 745,803,520.18/30,911.34
6. Step 6: Final answer
   x = 24,127.18