Finding the Fourth Proportional to 13,066.80, 18,032.37 and 7,098.58

Step by Step Solution

1. Step 1: Write the proportion equation
   13,066.80 : 18,032.37 = 7,098.58 : x
2. Step 2: Convert to fraction form
   13,066.80/18,032.37 = 7,098.58/x
3. Step 3: Cross multiply
   13,066.80x = 18,032.37 × 7,098.58
4. Step 4: Simplify right side
   13,066.80x = 128,004,221.03
5. Step 5: Solve for x
   x = 128,004,221.03/13,066.80
6. Step 6: Final answer
   x = 9,796.14