Finding the Fourth Proportional to 9,086.99, 12,539.73 and 5,053.80

Step by Step Solution

1. Step 1: Write the proportion equation
   9,086.99 : 12,539.73 = 5,053.80 : x
2. Step 2: Convert to fraction form
   9,086.99/12,539.73 = 5,053.80/x
3. Step 3: Cross multiply
   9,086.99x = 12,539.73 × 5,053.80
4. Step 4: Simplify right side
   9,086.99x = 63,373,287.47
5. Step 5: Solve for x
   x = 63,373,287.47/9,086.99
6. Step 6: Final answer
   x = 6,974.07