Finding the Fourth Proportional to 12,345.76, 17,019.44 and 8,802.82

Step by Step Solution

1. Step 1: Write the proportion equation
   12,345.76 : 17,019.44 = 8,802.82 : x
2. Step 2: Convert to fraction form
   12,345.76/17,019.44 = 8,802.82/x
3. Step 3: Cross multiply
   12,345.76x = 17,019.44 × 8,802.82
4. Step 4: Simplify right side
   12,345.76x = 149,819,066.82
5. Step 5: Solve for x
   x = 149,819,066.82/12,345.76
6. Step 6: Final answer
   x = 12,135.26