Finding the Fourth Proportional to 17,643.31, 26,467.43 and 5,164.23

Step by Step Solution

1. Step 1: Write the proportion equation
   17,643.31 : 26,467.43 = 5,164.23 : x
2. Step 2: Convert to fraction form
   17,643.31/26,467.43 = 5,164.23/x
3. Step 3: Cross multiply
   17,643.31x = 26,467.43 × 5,164.23
4. Step 4: Simplify right side
   17,643.31x = 136,683,969.46
5. Step 5: Solve for x
   x = 136,683,969.46/17,643.31
6. Step 6: Final answer
   x = 7,747.07