Finding the Fourth Proportional to 30,498.48, 42,084.36 and 17,070.48

Step by Step Solution

1. Step 1: Write the proportion equation
   30,498.48 : 42,084.36 = 17,070.48 : x
2. Step 2: Convert to fraction form
   30,498.48/42,084.36 = 17,070.48/x
3. Step 3: Cross multiply
   30,498.48x = 42,084.36 × 17,070.48
4. Step 4: Simplify right side
   30,498.48x = 718,400,225.69
5. Step 5: Solve for x
   x = 718,400,225.69/30,498.48
6. Step 6: Final answer
   x = 23,555.28