Finding the Fourth Proportional to 13,066.31, 18,031.82 and 7,098.23

Step by Step Solution

1. Step 1: Write the proportion equation
   13,066.31 : 18,031.82 = 7,098.23 : x
2. Step 2: Convert to fraction form
   13,066.31/18,031.82 = 7,098.23/x
3. Step 3: Cross multiply
   13,066.31x = 18,031.82 × 7,098.23
4. Step 4: Simplify right side
   13,066.31x = 127,994,015.27
5. Step 5: Solve for x
   x = 127,994,015.27/13,066.31
6. Step 6: Final answer
   x = 9,795.73