Finding the Fourth Proportional to 17,667.54, 26,491.99 and 7,802.15

Step by Step Solution

1. Step 1: Write the proportion equation
   17,667.54 : 26,491.99 = 7,802.15 : x
2. Step 2: Convert to fraction form
   17,667.54/26,491.99 = 7,802.15/x
3. Step 3: Cross multiply
   17,667.54x = 26,491.99 × 7,802.15
4. Step 4: Simplify right side
   17,667.54x = 206,694,479.78
5. Step 5: Solve for x
   x = 206,694,479.78/17,667.54
6. Step 6: Final answer
   x = 11,699.11