Finding the Fourth Proportional to 30,930.21, 42,683.69 and 17,501.16

Step by Step Solution

1. Step 1: Write the proportion equation
   30,930.21 : 42,683.69 = 17,501.16 : x
2. Step 2: Convert to fraction form
   30,930.21/42,683.69 = 17,501.16/x
3. Step 3: Cross multiply
   30,930.21x = 42,683.69 × 17,501.16
4. Step 4: Simplify right side
   30,930.21x = 747,014,000.57
5. Step 5: Solve for x
   x = 747,014,000.57/30,930.21
6. Step 6: Final answer
   x = 24,151.60