Finding the Fourth Proportional to 16,666.18, 24,986.82 and 10,090.78

Step by Step Solution

1. Step 1: Write the proportion equation
   16,666.18 : 24,986.82 = 10,090.78 : x
2. Step 2: Convert to fraction form
   16,666.18/24,986.82 = 10,090.78/x
3. Step 3: Cross multiply
   16,666.18x = 24,986.82 × 10,090.78
4. Step 4: Simplify right side
   16,666.18x = 252,136,503.52
5. Step 5: Solve for x
   x = 252,136,503.52/16,666.18
6. Step 6: Final answer
   x = 15,128.63