Finding the Fourth Proportional to 17,970.24, 24,799.20 and 10,012.80

Step by Step Solution

1. Step 1: Write the proportion equation
   17,970.24 : 24,799.20 = 10,012.80 : x
2. Step 2: Convert to fraction form
   17,970.24/24,799.20 = 10,012.80/x
3. Step 3: Cross multiply
   17,970.24x = 24,799.20 × 10,012.80
4. Step 4: Simplify right side
   17,970.24x = 248,309,429.76
5. Step 5: Solve for x
   x = 248,309,429.76/17,970.24
6. Step 6: Final answer
   x = 13,817.81