Finding the Fourth Proportional to 17,456.90, 24,090.98 and 9,901.78

Step by Step Solution

1. Step 1: Write the proportion equation
   17,456.90 : 24,090.98 = 9,901.78 : x
2. Step 2: Convert to fraction form
   17,456.90/24,090.98 = 9,901.78/x
3. Step 3: Cross multiply
   17,456.90x = 24,090.98 × 9,901.78
4. Step 4: Simplify right side
   17,456.90x = 238,543,583.94
5. Step 5: Solve for x
   x = 238,543,583.94/17,456.90
6. Step 6: Final answer
   x = 13,664.72