Finding the Fourth Proportional to 11,659.44, 17,500.68 and 5,090.16

Step by Step Solution

1. Step 1: Write the proportion equation
   11,659.44 : 17,500.68 = 5,090.16 : x
2. Step 2: Convert to fraction form
   11,659.44/17,500.68 = 5,090.16/x
3. Step 3: Cross multiply
   11,659.44x = 17,500.68 × 5,090.16
4. Step 4: Simplify right side
   11,659.44x = 89,081,261.31
5. Step 5: Solve for x
   x = 89,081,261.31/11,659.44
6. Step 6: Final answer
   x = 7,640.27