Finding the Fourth Proportional to 17,443.78, 24,071.88 and 9,890.80

Step by Step Solution

1. Step 1: Write the proportion equation
   17,443.78 : 24,071.88 = 9,890.80 : x
2. Step 2: Convert to fraction form
   17,443.78/24,071.88 = 9,890.80/x
3. Step 3: Cross multiply
   17,443.78x = 24,071.88 × 9,890.80
4. Step 4: Simplify right side
   17,443.78x = 238,090,150.70
5. Step 5: Solve for x
   x = 238,090,150.70/17,443.78
6. Step 6: Final answer
   x = 13,649.00