Finding the Fourth Proportional to 8,080.56, 11,151.63 and 5,387.13

Step by Step Solution

1. Step 1: Write the proportion equation
   8,080.56 : 11,151.63 = 5,387.13 : x
2. Step 2: Convert to fraction form
   8,080.56/11,151.63 = 5,387.13/x
3. Step 3: Cross multiply
   8,080.56x = 11,151.63 × 5,387.13
4. Step 4: Simplify right side
   8,080.56x = 60,075,280.52
5. Step 5: Solve for x
   x = 60,075,280.52/8,080.56
6. Step 6: Final answer
   x = 7,434.54