Finding the Fourth Proportional to 30,798.50, 42,501.72 and 17,369.87

Step by Step Solution

1. Step 1: Write the proportion equation
   30,798.50 : 42,501.72 = 17,369.87 : x
2. Step 2: Convert to fraction form
   30,798.50/42,501.72 = 17,369.87/x
3. Step 3: Cross multiply
   30,798.50x = 42,501.72 × 17,369.87
4. Step 4: Simplify right side
   30,798.50x = 738,249,351.18
5. Step 5: Solve for x
   x = 738,249,351.18/30,798.50
6. Step 6: Final answer
   x = 23,970.30