Finding the Fourth Proportional to 30,478.67, 42,056.71 and 17,735.98

Step by Step Solution

1. Step 1: Write the proportion equation
   30,478.67 : 42,056.71 = 17,735.98 : x
2. Step 2: Convert to fraction form
   30,478.67/42,056.71 = 17,735.98/x
3. Step 3: Cross multiply
   30,478.67x = 42,056.71 × 17,735.98
4. Step 4: Simplify right side
   30,478.67x = 745,916,967.43
5. Step 5: Solve for x
   x = 745,916,967.43/30,478.67
6. Step 6: Final answer
   x = 24,473.41