Finding the Fourth Proportional to 8,492.42, 11,730.83 and 7,080.80

Step by Step Solution

1. Step 1: Write the proportion equation
   8,492.42 : 11,730.83 = 7,080.80 : x
2. Step 2: Convert to fraction form
   8,492.42/11,730.83 = 7,080.80/x
3. Step 3: Cross multiply
   8,492.42x = 11,730.83 × 7,080.80
4. Step 4: Simplify right side
   8,492.42x = 83,063,567.01
5. Step 5: Solve for x
   x = 83,063,567.01/8,492.42
6. Step 6: Final answer
   x = 9,780.90