Finding the Fourth Proportional to 19,776.88, 29,665.27 and 4,986.96

Step by Step Solution

1. Step 1: Write the proportion equation
   19,776.88 : 29,665.27 = 4,986.96 : x
2. Step 2: Convert to fraction form
   19,776.88/29,665.27 = 4,986.96/x
3. Step 3: Cross multiply
   19,776.88x = 29,665.27 × 4,986.96
4. Step 4: Simplify right side
   19,776.88x = 147,939,514.88
5. Step 5: Solve for x
   x = 147,939,514.88/19,776.88
6. Step 6: Final answer
   x = 7,480.43