Finding the Fourth Proportional to 30,710, 42,379.98 and 17,281.48

Step by Step Solution

1. Step 1: Write the proportion equation
   30,710 : 42,379.98 = 17,281.48 : x
2. Step 2: Convert to fraction form
   30,710/42,379.98 = 17,281.48/x
3. Step 3: Cross multiply
   30,710x = 42,379.98 × 17,281.48
4. Step 4: Simplify right side
   30,710x = 732,388,776.77
5. Step 5: Solve for x
   x = 732,388,776.77/30,710
6. Step 6: Final answer
   x = 23,848.54