Finding the Fourth Proportional to 17,742.89, 26,632.79 and 13,068.18

Step by Step Solution

1. Step 1: Write the proportion equation
   17,742.89 : 26,632.79 = 13,068.18 : x
2. Step 2: Convert to fraction form
   17,742.89/26,632.79 = 13,068.18/x
3. Step 3: Cross multiply
   17,742.89x = 26,632.79 × 13,068.18
4. Step 4: Simplify right side
   17,742.89x = 348,041,984.01
5. Step 5: Solve for x
   x = 348,041,984.01/17,742.89
6. Step 6: Final answer
   x = 19,615.86