Finding the Fourth Proportional to 8,908.80, 12,292.03 and 5,679.93

Step by Step Solution

1. Step 1: Write the proportion equation
   8,908.80 : 12,292.03 = 5,679.93 : x
2. Step 2: Convert to fraction form
   8,908.80/12,292.03 = 5,679.93/x
3. Step 3: Cross multiply
   8,908.80x = 12,292.03 × 5,679.93
4. Step 4: Simplify right side
   8,908.80x = 69,817,923.15
5. Step 5: Solve for x
   x = 69,817,923.15/8,908.80
6. Step 6: Final answer
   x = 7,836.96