Finding the Fourth Proportional to 11,080.67, 16,628.34 and 5,237.69

Step by Step Solution

1. Step 1: Write the proportion equation
   11,080.67 : 16,628.34 = 5,237.69 : x
2. Step 2: Convert to fraction form
   11,080.67/16,628.34 = 5,237.69/x
3. Step 3: Cross multiply
   11,080.67x = 16,628.34 × 5,237.69
4. Step 4: Simplify right side
   11,080.67x = 87,094,090.13
5. Step 5: Solve for x
   x = 87,094,090.13/11,080.67
6. Step 6: Final answer
   x = 7,860.00