Finding the Fourth Proportional to 14,486.82, 19,985.10 and 10,016.78

Step by Step Solution

1. Step 1: Write the proportion equation
   14,486.82 : 19,985.10 = 10,016.78 : x
2. Step 2: Convert to fraction form
   14,486.82/19,985.10 = 10,016.78/x
3. Step 3: Cross multiply
   14,486.82x = 19,985.10 × 10,016.78
4. Step 4: Simplify right side
   14,486.82x = 200,186,349.98
5. Step 5: Solve for x
   x = 200,186,349.98/14,486.82
6. Step 6: Final answer
   x = 13,818.52