Finding the Fourth Proportional to 12,342.77, 17,015.30 and 8,799.83

Step by Step Solution

1. Step 1: Write the proportion equation
   12,342.77 : 17,015.30 = 8,799.83 : x
2. Step 2: Convert to fraction form
   12,342.77/17,015.30 = 8,799.83/x
3. Step 3: Cross multiply
   12,342.77x = 17,015.30 × 8,799.83
4. Step 4: Simplify right side
   12,342.77x = 149,731,662.32
5. Step 5: Solve for x
   x = 149,731,662.32/12,342.77
6. Step 6: Final answer
   x = 12,131.13