Finding the Fourth Proportional to 9,080.76, 13,554.87 and 7,790.52

Step by Step Solution

1. Step 1: Write the proportion equation
   9,080.76 : 13,554.87 = 7,790.52 : x
2. Step 2: Convert to fraction form
   9,080.76/13,554.87 = 7,790.52/x
3. Step 3: Cross multiply
   9,080.76x = 13,554.87 × 7,790.52
4. Step 4: Simplify right side
   9,080.76x = 105,599,485.83
5. Step 5: Solve for x
   x = 105,599,485.83/9,080.76
6. Step 6: Final answer
   x = 11,628.93