Finding the Fourth Proportional to 12,798.59, 17,659.71 and 7,133.19

Step by Step Solution

1. Step 1: Write the proportion equation
   12,798.59 : 17,659.71 = 7,133.19 : x
2. Step 2: Convert to fraction form
   12,798.59/17,659.71 = 7,133.19/x
3. Step 3: Cross multiply
   12,798.59x = 17,659.71 × 7,133.19
4. Step 4: Simplify right side
   12,798.59x = 125,970,066.77
5. Step 5: Solve for x
   x = 125,970,066.77/12,798.59
6. Step 6: Final answer
   x = 9,842.50