Finding the Fourth Proportional to 9,498.80, 13,109.62 and 7,136.84

Step by Step Solution

1. Step 1: Write the proportion equation
   9,498.80 : 13,109.62 = 7,136.84 : x
2. Step 2: Convert to fraction form
   9,498.80/13,109.62 = 7,136.84/x
3. Step 3: Cross multiply
   9,498.80x = 13,109.62 × 7,136.84
4. Step 4: Simplify right side
   9,498.80x = 93,561,260.40
5. Step 5: Solve for x
   x = 93,561,260.40/9,498.80
6. Step 6: Final answer
   x = 9,849.80