Finding the Fourth Proportional to 13,066.86, 18,032.39 and 7,098.65

Step by Step Solution

1. Step 1: Write the proportion equation
   13,066.86 : 18,032.39 = 7,098.65 : x
2. Step 2: Convert to fraction form
   13,066.86/18,032.39 = 7,098.65/x
3. Step 3: Cross multiply
   13,066.86x = 18,032.39 × 7,098.65
4. Step 4: Simplify right side
   13,066.86x = 128,005,552.86
5. Step 5: Solve for x
   x = 128,005,552.86/13,066.86
6. Step 6: Final answer
   x = 9,796.20